6-piece pellet stove small hose and tool accessory kit for ash vacuum Model No. 400 (SKU 464580). Contains nearly 36" of 1/2" tubing, hose cuff adapter, 2 extension wands, a mini-brush, and mini-crevice tool. The kit will give you the ability to reach deep into pellet and wood stoves to clean areas too small for the standard hose. The hose cuff adapter has a bleed valve that should be left open to let more air into the vacuum but may be closed briefly to increase suction. For use on cold stoves only.