Holds up to 40’ of 1-1/2'' shop vacuum hose
Tension knob is adjustable to keep the hose from uncoiling too easily
The hose port on the outside of the hose reel has an od of 2-1⁄2" and an id of 2-1⁄4"
Shop vacuum should have at least 4HP due to 40’ length (hose not included)