Pentair 271103 valve cover o-ring, 5-1/4 inch inside diameterPentair Cover O-Ring for 1-1/2 inch TM-12 and SM-10 Valves, 271103 In stock$2099
Pentair 271103 valve cover o-ring, 5-1/4 inch inside diameter
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Pentair Cover O-Ring for 1-1/2 inch TM-12 and SM-10 Valves, 271103

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$2099
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Quick overview

  • Seals the valve cover This is the o-ring between the multiport valve body and its cover, the seal that stops water pushing past the top of the valve.
  • 5-1/4 inch inside diameter Sized at 5-1/4 inch ID with a 1/8 inch cross section.
  • TM-12 and SM-10 Listed for the 1-1/2 inch TM-12 and SM-10 valves.
  • Genuine Pentair Factory part 271103, cut to the size the valve cover was machined for.
  • Replace it while the valve is open Any time the cover comes off for a spider gasket or a key assembly, the cover o-ring is the cheap part to change with it.
  • Not the same as the valve gasket The valve body gasket is a different Pentair part, so check which seal is leaking.
Full description and specifications ↓

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Product details

The Pentair 271103 is the cover o-ring for 1-1/2 inch TM-12 and SM-10 valves. It measures 5-1/4 inch inside diameter with a 1/8 inch cross section.

Where it sits

A multiport valve is two castings clamped together, and this o-ring is the seal between the valve body and the cover on top of it. When it flattens or takes a set, water finds its way past the top of the valve and shows up as a drip or a wet spot at the filter that has nothing to do with the spider gasket everyone suspects first.

Fitting it

The o-ring is worth changing whenever the cover comes off for other work, since it costs little next to a second teardown. Fit it with a pool rated silicone lubricant, never a petroleum grease. Note that the valve body gasket is a separate part, so identify which seal is leaking before you order.

Specifications
Brand Pentair
Manufacturer part number 271103
UPC 788379693640
Type Valve cover o-ring
Inside diameter 5-1/4 inch
Cross section 1/8 inch
Fits 1-1/2 inch TM-12 and SM-10 valves
Also listed for Pentair American Products top mount screw-on multiport valves, Pentair PacFab top mount and side mount 1-1/2 inch multiport valves, TM-12-H8 multiport valves
Shipping weight 0.02 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What size is this o-ring?
5-1/4 inch inside diameter with a 1/8 inch cross section.
Which valves does it fit?
It is listed as the cover o-ring for 1-1/2 inch TM-12 and SM-10 valves, and it also appears on the Pentair American Products screw-on top mount, Pentair PacFab 1-1/2 inch top and side mount, and TM-12-H8 multiport valve parts listings.
Is this the same as the valve gasket?
No. The valve body gasket is a separate Pentair part with its own dimensions. Confirm whether the leak is at the cover or at the body before ordering.
Should I lubricate it?
Use a pool rated silicone lubricant on the o-ring when you fit it. Petroleum grease attacks rubber and will shorten the life of the seal.
Ask your own question