Solo Backpack Sprayers and Solo Sprayer Pumps

Backpack Sprayers
Solo® Backpack Sprayers
Solo backpack sprayers are designed so only chemical-resistant parts come in contact with the formula you're spraying. As a result, you get years of trouble-free spraying.
Questions? Contact Technical Product Support at 1-800-874-4755 or send an email by clicking here.

Click on the tabs below to find the right Solo Backpack Sprayer for you!

Standard Backpack Sprayers
Solo® Standard Backpack Sprayers The Solo Standard Backpack Sprayers are our most popular sprayer pumps! These sprayers are supplied with flat fan, jet cap, swirl plate and plastic adjustable nozzles to create a variety of spray patterns. Large 4" opening with strainer allows fast and safe fillings. Feature a handy trigger lock for continuous spraying; high-density, UV-stabilized polyethylene backpack sprayer tanks; and thick, padded straps. 3- and 4-gal. models are USA made. 5-gal. model is imported.
Size Pump Item No.
3 Gal. Piston 109877
4 Gal. Piston L425
5 Gal. Piston L435
3 Gal. Diaphragm 109878
4 Gal. Diaphragm L475
5 Gal. Diaphragm L485
4-Gal. Deluxe Backpack Sprayers
Solo® 4-Gal. Deluxe Backpack Sprayers The Solo Deluxe Backpack Sprayers offer the same great features as the standard backpack sprayer pumps and then some. A pressure-monitoring gauge encourages even application. Folding handle with wand clips allows easy storage. Features quick-release straps for easy on/off, flat fan, jet cap, swirl plate and brass adjustable nozzles. USA made.
Size Pump Item No.
4 Gal. Piston D425
4 Gal. Diaphragm D475
Deluxe Shoulder Saver Sprayer Harness
Solo® Deluxe Shoulder Saver Sprayer Harness The Solo Deluxe Shoulder Saver Sprayer Harness evenly distributes sprayer weight, reducing fatigue. Durable, nylon-web sprayer harness features wide, contoured and padded shoulders; quick-adjust pull-tabs; and an adjustable sternum strap. Adjustable 61"L waist and lumbar support belt is padded for added comfort and sprayer stability. Imported.
Item No.
Pump Options on Standard and Deluxe Models
Piston Sprayer Pumps Piston Sprayer Pumps are the most popular. These allow a wider range of applications than diaphragm sprayer pump models. Not recommended for use with abrasive sprays or wettable powders. Deliver 60 psi. NOTE: Models D425 and L435 can reach 90 psi with an optional plug installed.
Diaphragm Sprayer Pumps Diaphragm Sprayer Pumps generate a lower pressure than piston pumps, which results in larger liquid droplets and less spray drift. Diaphragm pumps are effective with abrasive sprayer and wettable powders, unlike piston pumps.