Pentair Lid Assembly 48 Sq Ft FNS Plus | 170021 Nozzles Monitor Heater Performance: If your

Monitor Heater Performance: If your heater’s performance decreases

Replaces Pentair R173573 for CCP 320 filters

Install the New Ribbed Skimmer Cone: Insert the new Ribbed Skimmer Cone (PVXH035BLK) into the skimmer opening

Provides stable mounting for Intelliflo & Whisperflo pumps to reduce vibration

allowing it to be cleaned or replaced if necessary

Pentair Lid Assembly 48 Sq Ft FNS Plus | 170021 Nozzles Monitor Heater Performance: If yourPentair 170021 Tank Lid Assembly for FNS Plus 48 Sq Ft DE Filter Genuine Pentair 170021 tank lid assembly for FNS Plus 48 Sq Ft DE filters. Durable, corrosion resistant construction ensures long lasting performance. Features Genuine Pentair replacement part (170021) Compatible with FNS Plus 48 Sq Ft DE filters Constructed from fiberglass reinforced polypropylene Resistant to pool chemicals and UV degradation Includes high flow manual air relief valve