Description
Able to fit 4" UPVC Elbow and 4" PVC Pipe
4" Ventilation Hole Cap (with stripe gap)
for covering ventilation holes of PVC pipes
to prevent pest like pigeon, snake, rat etc to enter swiftlet house
it is more suggestible to enhance grip of cap by screws
4" Ventilation Hole Cap (blocker - block all)
for covering extra ventilation that affect brightness and ventilation
4" Ventilation Hole Cap (NEST AMP Double Layer with stripe gap)
for covering ventilation holes of PVC pipes
to prevent pest like pigeon, snake, rat etc to enter swiftlet house
it is more suggestible to enhance grip of cap by screws