Features: Easy to Install Strong and durable Easy to tighten the knob Including: Tension Clamp, Spring Barrel Nut Assembly Adaptation Models: Compatible with Pentair 180008, 160340, 160301 Compatible with Pentair Flt Quad De 24 36 48 60 80 100 Compatible with Pentair FNS Plus Filters FNSP24, FNSP36, FNSP48, FNSP60 Compatible with Pentair Clean & Clear Plus Filters CCP240, CCP320, CCP420, CCP520 Filter Clamp Installation: Follow these instructions exactly to prevent the lid from separating during system startup or operation. 1. Turn off the pump and any automatic controls. 2. Open the Air Relief Valve and turn counterclockwise until it snaps into the full open position. Wait until all pressure is relieved before assembly, disassembly, or servicing. 3. Be sure the O-ring is clean and in position on the lower tank half. Place the FNS Plus Vertical Grid D.E. Filter lid onto the lower tank half so the O-ring fits in between the tank halves. 4. Hold the ends of the filter clamp apart and place over both upper and lower tank flanges. Bring the ends of the filter clamp together. 5. Insert the T-bolt through the other side of the clamp and hold together. 6. Place the small washer onto the T-bolt. 7. Place the larger washer and spring onto the barrel nut then place onto T-bolt and tighten the nut by hand. Be sure filter clamp is fully engaging both tank flanges. 8. First tighten the nut using a 7/8 in. wrench and then tap around the outside of filter clamp with a rubber mallet (or similar tool) multiple times around the entire clamp to fit the clamp properly. Continue to tighten only until the spring coils touch.