Burner Insulation Rigid Formed Donuts With Hole for Burner Thickness:8.717-474.0 - Donut 24" diameter *Discharge valve reduces trapped pressure

*Discharge valve reduces trapped pressure (gun closed) in hose substantially lower than a regular trap pressure unloader valves

Medium soft polystyrene monofilament

Wand not included

improved rinsing and a fresh pine scent

Burner Insulation Rigid Formed Donuts With Hole for Burner Thickness:8.717-474.0 - Donut 24" diameter *Discharge valve reduces trapped pressureRidgid burner insulation donuts and discs are refractory grade ceramic Kaowool formed Disks retains heat inside coil for better fuel efficiency and paint protection. Donut Models Available (with hole): 8. 704 810. 0 Donut, 16" diameter 8. 704 807. 0 Donut, 18" diameter 8. 717 474. 0 Donut, 24" diameter