$297.09
By Pentair Pool Products
Part # 4600-1011
Manufacturer Code 181011
Dimensions 22" X 1.2"
Pentair® DE Filter Clamp Assembly – 18" (181011)
For Filters Manufactured Prior to 1991
The 181011 Clamp Assembly is a genuine Pentair® replacement part for 18" DE filters and other compatible filter models. This upgraded spring design clamp band replaces the older, obsolete non-spring clamp design, making installation easier and eliminating the need for a torque wrench.
✅ OEM Replacement – Fits Pentair® 18" DE filters and other select models.
✅ Upgraded Spring Design – Simplifies installation and removal.
✅ Complete Kit – Includes clamp band halves, brass nuts, stainless washers, and springs.
✅ Durable Components – Built from corrosion-resistant materials for long life.
➡ Includes:
Complete clamp band (2 halves)
(2) Brass nuts
(4) Stainless steel washers
(2) Springs
➡ Commonly Used On:
18" Pac-Fab Nautilus Stainless DE Filter
Pac-Fab PF35 Sand Filter
Pac-Fab Sea Horse Cartridge Filter
Richardson Sea Blue Sand Filter
⚠ Important:
For filters manufactured before 04/92 with the old non-spring design, replace the entire clamp band assembly—components are not interchangeable.
Do not mix parts between clamp designs.
Always relieve system pressure before servicing.
I see the response that this clamp is correct for a NS48, but just wondering if the 22" is the diameter? The diameter is close to 22", but closer to 21 so just wanted to confirm this will work on the Nautilus NS48. Thanks!
Reply
HI Dennis, The Clamp Assy.18" NS & PF35 (181011) would work on the Nautilus NS48 Filter.
Reply
will this replace an older nautalis nss48 clamp?
Reply
Hello, According to the Pac Fab Nautilus Stainless D.E. Parts diagram, yes this clamp is the correct replacement part for the Nautilus NS48.
Reply
Less than 1 hr
Socket Set, rubber mallet
3 0
Diagrams at INYO guided me to the right parts and Eric confirmed. Parts arrived when promised.
It took a little time to line up the top and bottom halves of the filter shells, not unexpected w/ equipment of this age. After the top and bottom were correctly aligned, patiently alternated tightening the brass tension nuts and springs, tapping the tension band in the center working out toward the ends w/ the rubber mallet. The bear trap here is that most folks tighten one side first before doing the other side. Patience pays off, alternating from side to side tightening a little more each time and using the rubber mallet to ensure the tension band seats correctly. INYOPools.com is the best source for every pool part or supply.
