POLYPRO FLEX LENGTHS
DURAVENT
DuraVent
2PPS-FLEX
2PPS-FLEX25
2PPS-FLEX35
2PPS-FLEX50
3PPS-FLEX
3PPS-FLEX25
3PPS-FLEX35
3PPS-FLEX50
4PPS-FLEX
4PPS-FLEX25
4PPS-FLEX35
5PPS-FLEX