Duckies Pool Supply
Pleatco PTL18P4 Filter Cartridge
USD 31.92
Pool Geek
Pleatco PTL18P4 Filter Cartridge
USD 30.99
PureFilters
Super-Pro PTL18P4 SPG Pool Filter Cartridge
CAD 39.50
SpaDepot.com
Clarathon FC-0121 Spa Filter PTL18P4-4 4CH-21
USD 16.95
The Cover Guy
Hot Tub Replacement Filter for PTL18P4, 4CH-21
USD 15.99
Finest Filters
Hot Tub Filter For Pleatco PTL18P4 Unicel 4CH-21
GBP 21.99
Bath and Spa Parts Onl
Pleatco PTL18P4 4CH-21 FC-0121 Spa/Pool Filter Cartridge
USD 0.00
Yardandpool.com
Swimming Pool & Spa Replacement Filter Cartridge 19 Sq Ft 11
USD 31.17
PatioZora
Cryspool 04026 Spa Filter Cartridge – 19 sq ft, 2 Pack, Comp
USD 41.35
Hurricane Pool Filters
HF4H21-01M Elite Aseptic Spa Filter Cartridge - Replacement
USD 23.99