CHAPIN ATV Boom Kit 7-Foot Spray Pattern — Adjustable Height Brackets, Powder-Coated Steel

The CHAPIN 6428 ATV Boom Kit is a two-nozzle boom system that delivers a 7-foot spray pattern, mounts to most ATVs and lawn trailers, and features adjustable height brackets with a powder-coated steel frame.

If you need to cover larger areas faster than a handheld sprayer allows, the CHAPIN 6428 boom kit converts a compatible tank and pump into a wide, stable sprayer for lawns, fields, and roadside work. Designed as a genuine CHAPIN replacement/upgrade part, the boom pairs with a minimum 2 GPM pump and standard garden chemical-resistant seals. It’s built for utility—durable metal construction, easy height adjustments, and compatibility with common ATV and lawn trailer mounting points.

How does the CHAPIN 6428 improve coverage compared to a handheld sprayer?

The 6428 boom spreads product across a 7-foot swath using two nozzles, cutting the number of passes required and reducing operator fatigue. Instead of making overlapping passes with a wand, you apply product more evenly and finish jobs faster.

• Two nozzles create a consistent 7 ft spray pattern.
• Reduces time spent treating large lawns and roadside strips.
• Compatible with pumps of at least 2 GPM for steady output.

Can I mount this boom on my ATV or lawn trailer and adjust it for different terrain?

Yes—the kit was designed to fit most ATV and lawn trailer mounting setups and includes adjustable height brackets so the nozzles clear obstacles and uneven ground. Adjustments are simple and let you protect the boom from damage while maintaining optimal nozzle height for accurate application.

• Brackets slide to set nozzle height for hills or dips.
• Fits common ATV racks and trailer crossbars without custom fabrication.
• Quick adjustments help avoid snagging on vegetation or debris.

What materials and components ensure durability and chemical resistance?

The frame is constructed from powder-coated steel to resist corrosion and abrasion during regular use. Seals and wetted components are formulated to withstand standard lawn and garden chemicals, so routine pesticide and herbicide applications won’t prematurely degrade the system.

• Powder-coated steel frame for long-term outdoor durability.
• Standard chemical-resistant seals suitable for common formulations.
• Genuine CHAPIN replacement part quality and fit.

What pump and flow rate do I need to use with this boom?

The 6428 is optimized for pumps that deliver at least 2 gallons per minute (GPM) to maintain consistent nozzle pressure and droplet size. Using an undersized pump can lead to uneven coverage or poor atomization; pairing with the recommended flow keeps spray pattern and application rates steady.

• Minimum recommended pump: 2 GPM for stable nozzle performance.
• Maintain recommended pressure per nozzle for correct droplet size.
• Compatible with common ATV/UTV pump setups when plumbed correctly.

Who is this for: The CHAPIN 6428 boom kit is intended for homeowners, landscapers, and small-acreage operators who already use ATV- or trailer-mounted tanks and pumps and want to expand coverage without a full sprayer upgrade. It’s ideal if you need a rugged, easy-to-install boom to treat lawns, fence rows, driveways, and wide swaths quickly while keeping compatibility with common CHAPIN and third-party tanks and pumps.