Suit 60- 80mm Exhaust Flaps suit clamp on type outlets.
Price per Flap, Sold without clamp.
if you require hose clamps we recommend these
for flaps going on 2 1/2" pipe use 59mm-83mm HAS44 clamps
for flaps going on 3" pipe use 65mm-89mm HAS48 clamps
Ring of flap can be cut down to size if required