--- product_id: 2710026 title: "FIELD KING 190328 Backpack Sprayer, 4 Gallon, with Internal No Leak Pump Design Delivers 150 PSI" brand: "field king" price: "Rp5912547" currency: IDR in_stock: true reviews_count: 13 category: "Field King" url: https://www.desertcart.id/products/2710026-field-king-190328-backpack-sprayer-4-gallon-with-internal-no store_origin: ID region: Indonesia --- # 6 versatile nozzles included 4 Gallon tank capacity Internal No Leak Pump, 150 PSI max pressure FIELD KING 190328 Backpack Sprayer, 4 Gallon, with Internal No Leak Pump Design Delivers 150 PSI **Brand:** field king **Price:** Rp5912547 **Availability:** βœ… In Stock ## Summary > 🌿 Spray Like a Pro, Stay Ahead of the Weeds! ## Quick Answers - **What is this?** FIELD KING 190328 Backpack Sprayer, 4 Gallon, with Internal No Leak Pump Design Delivers 150 PSI by field king - **How much does it cost?** Rp5912547 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/2710026-field-king-190328-backpack-sprayer-4-gallon-with-internal-no) ## Best For - field king enthusiasts ## Why This Product - Trusted field king brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Powerful Precision:** Delivers up to 150 PSI for professional-grade spray coverage, reaching hard-to-access areas effortlessly. - β€’ **Comfort Meets Control:** Ergonomic padded straps, waist belt, and lockable brass shut-off reduce fatigue during extended use. - β€’ **Maintenance Made Easy:** Tool-free seal changes and removable in-line filter keep your sprayer performing like new. - β€’ **Stay Dry, Spray Smart:** Internal No Leak Pump design prevents chemical dripsβ€”no more back mess or discomfort. - β€’ **Versatility at Your Fingertips:** Includes 6 specialized nozzles plus compatibility with TeeJet nozzles for every spraying need. ## Overview The FIELD KING 190328 Backpack Sprayer combines a 4-gallon capacity with an innovative internal no-leak pump delivering up to 150 PSI, ensuring powerful, mess-free spraying. Equipped with six precision nozzles and ergonomic support features, it offers professional versatility and comfort for tackling large lawn, garden, and invasive species projects with ease. ## Description FIELD KING 190328 Professional No Leak Pump Backpack Sprayer does the work of a piston or diaphragm backpack sprayer. The exclusive internal No Leak Pump keeps your back and clothing dry. The paddles keep liquids, powders, and water-soluble solutions mixed, in solution, and ready to spray. Also the pump features Viton seals that can be easily changed within minutes without tools (up to 7x faster than the leading competitor). The premium shut-off offers a comfort grip, lockable trigger to prevent hand fatigue, and a removable in-line filter to reduce clogging. The FIELD KING 190328 Backpack Sprayer is capable of spraying up to 150 PSI - perfect for those hard-to-reach areas. The included pressure regulator maintains a low, continuous 25 PSI (great for spraying herbicides and weed killers). The tank has a built-in carry handle with wand storage. With adjustable padded straps, waist belt and chest cinch strap, the backpack ensures comfort while you work. Multiple nozzles are included for ultimate versatility: brass adjustable nozzle (enables stream to cone patterns), wide flat fan nozzle (red, 0.25 GPM, angled at 70Β°), narrow flat fan nozzle (yellow, 0.15 GPM, angled at 30Β°), high volume wide fan (brown), jet stream (orange) and foaming (black). Also accepts TeeJet nozzles. Review: Excellent sprayer, gets the job done - I have 3 different size tank sprayers (1,2,3 gallon) and was tired of carrying them around the farm. We have a 300 ft barn lane and 400 ft drive with a half circle turn around with gravel surface. I use 6 gal of spray to keep weeds/grass out of drives. We have 3 pastures totaling 20 acres surrounded by woods and 26 acres of woods in a woodland management plan. I needed a sprayer that I could use to kill invasive species along the pasture edge and in the woods. This sprayer does the trick. It worked perfectly right out of the box. The wide mouth on the tank with a screen allows you to pour chemical easily into the sprayer and the screen catches anything that might fall into it. I was able to take water, chemical and sprayer in a trailer to the back of the property, mix it the field and spray the pastures edge. I used 11 gallon of chemical first time I used the sprayer and it worked great. No leaks, 5 or 6 pumps pressurizes the tank with excellent spray coverage. With the wand I can reach 10 ft high and the spray is another 3 ft so I can reach places I couldn't reach with the hand held sprayers. Having the sprayer on your back is much easier than carrying around a tank and having to stop to pump 12 or 15 times to keep good pressure. I thought I would use more chemical due to the excellent spray coverage but I was pleasantly surprised that I used less chemical than before. I was able to spray about 1000 ft of pasture edge with the 11 gallons of spray. We have serious problems with Chinese bittersweet, grapevine and privet so I use Crossbow in the sprayer. Clean up was easy, the filter on the wand is easy to get to, the nozzle is easy to remove. The one thing I can't use it for is walking thru brush to get to invasive plants that are well hidden but I knew that before I bought this sprayer. With a tank full of spray on your back it is hard to maneuver in close quarters. If you are looking for a good sprayer, at a fair price that does the job intended then look no further than this sprayer. It is well worth the investment. One caveat is that any piece of equipment is only has good as the maintenance so I would encourage you to clean after every use, use vaseline on the o-rings and take care of the equipment you purchase. Review: Good sprayer - Heavy duty, works really well, uses more solution than previous sprayer which is probably a good thing. ## Features - Internal No Leak Pump design is safer to use chemicals will not drip down your back. Internal piston pump delivers up to 150 PSI - Durable, 21 inch poly wand with the highest quality Viton seals can be used with Wet table powders and liquids for all applications does the work of both a piston and diaphragm backpack - Premium, lockable shut off with brass components and an in-line filter. - Easy access pump allows changing of seals in just minutes with no tools - Includes 6 Nozzles: adjustable brass, high volume wide fan (brown), low volume wide fan (red), low volume narrow fan (yellow), jet stream (orange) and foaming (black). Also accepts TeeJet nozzles. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000AYHKUO | | Best Sellers Rank | #2,175 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #12 in Lawn & Garden Sprayers | | Brand | Field King | | Brand Name | Field King | | Color | White | | Customer Reviews | 4.6 out of 5 stars 6,660 Reviews | | Global Trade Identification Number | 00841688002586, 30841688002587 | | Hose Length | 21 Inches | | Included Components | 6 Nozzles, professional stainless steel wand | | Item Dimensions W x H | 9.5"W x 22.5"H | | Item Type Name | Backpack Sprayer | | Item Weight | 12.8 Pounds | | Manufacturer | Fountainhead Sprayers | | Manufacturer Part Number | 190328 | | Material | Polyethylene (PE) | | Material Type | Polyethylene (PE) | | Maximum Pressure | 150 Pound per Square Inch | | Model Name | FIELD KING 190328 Backpack Sprayer, 4 Gallon | | Model Number | 190328 | | Power Source | Manual | | Recommended Uses For Product | Spraying Weed And Herbicides Killers | | Style Name | Base Model, Manual | | Tank Volume | 4 Gallons | | UPC | 841688002586 094716169090 657819404606 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Field King - **Color:** White - **Material:** Polyethylene (PE) - **Recommended Uses For Product:** Spraying Weed And Herbicides Killers - **Tank Volume:** 4 Gallons ## Images ![FIELD KING 190328 Backpack Sprayer, 4 Gallon, with Internal No Leak Pump Design Delivers 150 PSI - Image 1](https://m.media-amazon.com/images/I/71b3gswIT-L.jpg) ![FIELD KING 190328 Backpack Sprayer, 4 Gallon, with Internal No Leak Pump Design Delivers 150 PSI - Image 2](https://m.media-amazon.com/images/I/81YmU2w9cwL.jpg) ![FIELD KING 190328 Backpack Sprayer, 4 Gallon, with Internal No Leak Pump Design Delivers 150 PSI - Image 3](https://m.media-amazon.com/images/I/51CRnpTItML.jpg) ![FIELD KING 190328 Backpack Sprayer, 4 Gallon, with Internal No Leak Pump Design Delivers 150 PSI - Image 4](https://m.media-amazon.com/images/I/81BG91arnML.jpg) ![FIELD KING 190328 Backpack Sprayer, 4 Gallon, with Internal No Leak Pump Design Delivers 150 PSI - Image 5](https://m.media-amazon.com/images/I/61f8ehrrF4L.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: How many gallons does it hold?** A: The tank holds 4 gallons when full; it has graduated markings of 1, 2, and 3 gallons also. When full, it weighs 50 pounds. The back pack makes it feel like less than that once you have it on your back. This is most easily done if you set it on a bench top or table top, and then "slip" into the harness. **Q: Has anyone had any experience with using this sprayer for a stain or oil based product for spraying/staining a split rail fence?** A: use a $20.00 plastic cheaPO 1 gallon pump spray worth it for large deck saves serious time ive done this 5 plus times solvents and stayin etc usually ruin pump in hours make sure finish same day b/c next day pump might be junk **Q: what is the difference bet 190328 and 190348** A: The 190328 Field King backpack has adjustable padded shoulder straps and durable poly wand; whereas, the 190348 Field King Max backpack has a deluxe padded harness with a full back pad, wide support waist belt and chest cinch strap. It also features a 21" poly-lined stainless steel wand and foldable pump handle making it easier to transport and store. They both have the internal No Leak pump, Viton seals, lockable shut-off with removable filter, and 4 nozzles. Please let us know if you have any other questions. You can also call us at 1-800-311-9903. Thank you for your interest in our products. **Q: will it work for Organic fertilizers? Using Fertilizers that have some tiny solids.** A: I haven't used it for organic fertilizers but as long as the solids are soluble in water, it should work. If they are not soluble, they will likely clog up the spray head. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent sprayer, gets the job done *by O***O on September 28, 2019* I have 3 different size tank sprayers (1,2,3 gallon) and was tired of carrying them around the farm. We have a 300 ft barn lane and 400 ft drive with a half circle turn around with gravel surface. I use 6 gal of spray to keep weeds/grass out of drives. We have 3 pastures totaling 20 acres surrounded by woods and 26 acres of woods in a woodland management plan. I needed a sprayer that I could use to kill invasive species along the pasture edge and in the woods. This sprayer does the trick. It worked perfectly right out of the box. The wide mouth on the tank with a screen allows you to pour chemical easily into the sprayer and the screen catches anything that might fall into it. I was able to take water, chemical and sprayer in a trailer to the back of the property, mix it the field and spray the pastures edge. I used 11 gallon of chemical first time I used the sprayer and it worked great. No leaks, 5 or 6 pumps pressurizes the tank with excellent spray coverage. With the wand I can reach 10 ft high and the spray is another 3 ft so I can reach places I couldn't reach with the hand held sprayers. Having the sprayer on your back is much easier than carrying around a tank and having to stop to pump 12 or 15 times to keep good pressure. I thought I would use more chemical due to the excellent spray coverage but I was pleasantly surprised that I used less chemical than before. I was able to spray about 1000 ft of pasture edge with the 11 gallons of spray. We have serious problems with Chinese bittersweet, grapevine and privet so I use Crossbow in the sprayer. Clean up was easy, the filter on the wand is easy to get to, the nozzle is easy to remove. The one thing I can't use it for is walking thru brush to get to invasive plants that are well hidden but I knew that before I bought this sprayer. With a tank full of spray on your back it is hard to maneuver in close quarters. If you are looking for a good sprayer, at a fair price that does the job intended then look no further than this sprayer. It is well worth the investment. One caveat is that any piece of equipment is only has good as the maintenance so I would encourage you to clean after every use, use vaseline on the o-rings and take care of the equipment you purchase. ### ⭐⭐⭐⭐⭐ Good sprayer *by C***. on May 4, 2026* Heavy duty, works really well, uses more solution than previous sprayer which is probably a good thing. ### ⭐⭐⭐⭐⭐ Perfect sprayer *by C***R on April 26, 2026* Bought this to spray our two acre lot and was not disappointed. No leaks at all and super nice quality. Pump and spray was easy to use and continous. This is a great value. ## Frequently Bought Together - FIELD KING 190328 Backpack Sprayer, 4 Gallon, with Internal No Leak Pump Design Delivers 150 PSI - RM43 Concentrated Extended Control Weed Killer --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.id/products/2710026-field-king-190328-backpack-sprayer-4-gallon-with-internal-no](https://www.desertcart.id/products/2710026-field-king-190328-backpack-sprayer-4-gallon-with-internal-no) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-05-15*