Pentair 51005000 drain cap fitting o-ringPentair O-Ring Drain Cap Fitting, 51005000 In stock$799
Pentair 51005000 drain cap fitting o-ring
Shop all Pentair

Pentair O-Ring Drain Cap Fitting, 51005000

Ask a questionMPN 51005000
$799
In stock
Get volume pricing Request a quote

30 day returns · Easy, with prepaid labels provided

Quick overview

  • Genuine Pentair Factory o-ring, part number 51005000.
  • Drain cap seal Seals the drain cap fitting on the filter tank.
  • Wide fitment Listed for Clean and Clear Plus, Predator and Quantum RPM cartridge filters and Eclipse Meteor top mount filters.
  • Also valve and DE system use Also listed for ABS 2 in push pull valves and the Pentair EasyClean aboveground DE filter system.
  • Cheap insurance An o-ring is the least expensive part of the filter and the most common source of a drip.
  • Worth a spare Keep one on the shelf so a weeping drain cap does not cost you a weekend.
Full description and specifications ↓

Need a hand?

Bilingual support from pool professionals.
(888) 751-8084CallChat with a techChatEmail usEmail

Send us a message

A pool professional will get back to you, usually the same business day.

About Pentair O-Ring Drain Cap Fitting, 51005000, SKU AMP-061-1075. We will include it with your message.

We use your details to answer this message and nothing else.

Frequently bought together

Current item Pentair O-Ring Drain Cap Fitting, 51005000
Pentair

O-Ring Drain Cap Fitting, 51005000

$799
Pentair Genuine OEM High Flow Manual Air Relief Valve, 98209800
Pentair

Genuine OEM High Flow Manual Air Relief Valve, 98209800

$3899
Pentair Genuine OEM Clamp Kit with Tension Control, 190003
Pentair

Genuine OEM Clamp Kit with Tension Control, 190003

$30199
Pentair 150 sq ft and 200 sq ft Clean & Clear Replacement Tank Lid, 178546Z
Pentair

150 sq ft and 200 sq ft Clean & Clear Replacement Tank Lid, 178546Z

$15199
Pentair OEM Tank O-Ring 20-7/8" ID (7/16" Thick), 39010200Z
Pentair

OEM Tank O-Ring 20-7/8" ID (7/16" Thick), 39010200Z

$6099
Pentair Genuine OEM 1-1/2 in. Drain Cap Plug, 190030Z
Pentair

Genuine OEM 1-1/2 in. Drain Cap Plug, 190030Z

$3599
Pentair Genuine OEM Tank Bottom Assembly, Clean & Clear Plus, 178578
Pentair

Genuine OEM Tank Bottom Assembly, Clean & Clear Plus, 178578

$52099
Subtotal

Similar products

Other products people compare with this one.

Pentair 191474Z drain plug o-ring for Clean and Clear Plus filters Pentair Genuine OEM Drain Plug O-Ring for Clean and Clear Plus, 191474Z$599 Pentair 86006900 bulkhead o-ring, upper and lower Pentair O-Ring, Bulkhead Upper and Lower, 86006900$999 Pentair 071426Z rubber union o-ring Pentair Genuine OEM Replacement Union O-Ring, 071426Z$599 Pentair 192320 upper bulkhead O-Ring, size 2-137 Buna N Pentair Genuine OEM Bulkhead O-Ring, 192320$899 Pentair Housing O-Ring for Predator II Dynamic Leaf Traps | R172223 Pentair Housing O-Ring for Predator II Dynamic Leaf Traps | R172223$1099 Pentair 39104500 union nut C clip Pentair Union Nut "C" Clip, 39104500$999 Pentair 178746Z union diamond seal Pentair Genuine OEM Union Diamond Seal, 178746Z$1099 Pentair 86300500 black rubber drain cap gasket for Clean & Clear, Predator and Warrior filters Pentair Drain Cap Gasket for Clean & Clear, Clean & Clear Plus, Predator and Warrior Filters Before 11/98, 86300500$1299 Pentair 86202000 1-1/2 inch filter drain plug with o-ring Pentair 1-1/2" Drain Plug with O-Ring, 86202000$2699 Pentair 87300400Z tank body o-ring for Clean and Clear and Predator filters Pentair Tank Body O-Ring, Clean and Clear, 87300400Z$1699
Pentair 192019 genuine OEM metal drain plug wrench Pentair Genuine OEM Drain Plug Wrench, 192019$5199 Pentair 071439Z filter tank o-ring, 19-1/4 inch inside diameter Pentair OEM O-Ring 19-1/4" ID (1/2" Thick), Filters Made 3/03 to 7/03, 071439Z$7299 Pentair 195339 stainless steel back-up ring for PacFab filters Pentair Genuine OEM Back-Up Ring, Stainless Steel, 195339$8099 Pentair 59052900Z locking ring assembly for Clean & Clear, Predator and EasyClean filters Pentair Locking Ring Assembly 59052900Z$11499 Pentair 178616 genuine OEM metal compression spring for pool filters Pentair Genuine OEM Compression Spring, 178616$1399 Pentair 190058 pool filter pressure gauge with indicator Pentair Genuine OEM Pressure Gauge with Indicator, 190058$1499 Pentair 59016200 air bleed sock kit for cartridge filters Pentair Air Bleed Sock Kit, 59016200$1799 Pentair 79304600Z EasyClean filter body swivel Pentair EasyClean Swivel Body, 79304600Z$3099 Pentair 190106Z EasyClean replacement air bleeder Pentair Genuine OEM EasyClean Replacement Air Bleeder, 190106Z$3299 Pentair 53108900Z spring barrel nut assembly for pool filter tank clamps Pentair Spring Barrel Nut Assembly, 53108900Z$4899

Product details

The Pentair 51005000 is the o-ring for the drain cap fitting, the small seal that keeps the bottom of the filter tank dry. It is the genuine Pentair part.

Where it is used

Pentair lists it across a wide range of filters: the Clean and Clear Plus and Predator cartridge filters, the EasyClean aboveground DE filter system, the American Products Quantum RPM cartridge and Eclipse Meteor top mount filters, and ABS 2 in push pull valves.

Why it fails

O-rings dry out, flatten and crack. A drain cap that weeps as soon as the pump comes up to pressure is almost always the seal rather than the cap, and this is one of the least expensive parts on the equipment pad. It is worth keeping a spare on the shelf so a small drip never turns into a lost weekend.

Specifications
Brand Pentair
Manufacturer part number 51005000
UPC 788379693527
Part type Pool filter part
Type Drain cap fitting o-ring
Fits Pentair Clean and Clear Plus cartridge filters, Pentair Predator cartridge filters, American Products Quantum RPM cartridge filters, American Products Eclipse Meteor top mount filters, ABS 2 in push pull valves, Pentair EasyClean aboveground DE filter systems
Shipping weight 0.02 lb
Ships Parcel

Request a quote

Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.

Request a quote

From Pentair

Your trusted source for all things pool. Pentair

Pentair equipment

Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, 2.2 THP, EC-342001 Pentair MasterTemp 400 Natural Gas Pool Heater, EC-462028 Pentair Clean & Clear Plus 420 sq ft Cartridge Pool Filter, EC-160301 Pentair IntelliConnect Control & Monitoring System with Wi-Fi, EC-523317
Shop Pentair equipment

Genuine Pentair parts

Pentair Genuine OEM Seal Kit for WhisperFlo and IntelliFlo Pool Pumps, 356198 Pentair Genuine OEM High Flow Manual Air Relief Valve, 98209800 Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400 Pentair Genuine OEM MasterTemp/Max-E-Therm 6-Button Control Board Kit, 461105Z
Shop Pentair parts
Pool lighting: a backyard pool and spa lit in blue and green at nightPool water treatment: three people floating on rings in clear blue water, seen from abovePool cleaners: a toddler in flower sunglasses laughing in a yellow ring, held by her mother
Pentair makes pumps, filters, heaters, salt chlorinators, cleaners, lighting and automation for pools and spas.Shop all Pentair

Customer reviews

More from Pentair

Pentair SuperFlo VS EC-342001 1.5 HP variable speed pool pump, front view Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, 2.2 THP, EC-342001$1,48900 Pentair SuperFlo EC-348190 single speed pool pump, 1 HP, 115/230V Pentair SuperFlo 1 HP Single Speed Pool Pump, 1.1 THP, 115/208-230V, EC-3481905.0 (1) $74800 Pentair WhisperFlo VS EC-011533 2.6 THP variable speed pool pump, top view Pentair WhisperFlo VS / VST 2.6 THP Variable Speed Pool Pump, 115/208-230V, EC-011533$1,79900 Pentair 262506 HiFlow 1.5 in. six way clamp style multiport valve Pentair Genuine OEM HiFlow Valve 1.5 in. 6-Way Clamp Style, 262506$20399 Pentair EC-520556 IntelliChlor 110/220V power center Pentair 110/220V IntelliChlor Salt Chlorine Generator Power Center, EC-520556$79900 Web Price Pentair 523769 IntelliChlor Plus and LT replacement sensor board Pentair IntelliChlor Plus and LT Replacement Sensor Board, 523769$39399 Pentair 350305S 3.2 kW 10 pole variable speed motor for IntelliFloXF and IntelliFlo 2 VST pumps Pentair 3.2 kW IntelliFloXF VSF, VSF, VS+SVRS, i1, i2 Motor, 350305S$78199 Pentair 523735-EC IntelliChlor Plus40 salt chlorine generator cell Pentair IntelliChlor Plus40 Salt Chlorine Generator Replacement Cell, 40,000 Gallons, 523735-EC$1,81900 Web Price Pentair Rainbow 320 in-line chlorinator R171096, front view Pentair Rainbow 320 In-Line Chlorinator, R171096$14699 Pentair 190003 tank clamp kit with tension control for Clean and Clear Plus, FNS Plus and Quad DE filters Pentair Genuine OEM Clamp Kit with Tension Control, 190003$30199
Pentair IntelliChlor LT25 salt chlorine generator cell 523747-EC Pentair IntelliChlor LT25 Salt Chlorine Generator Cell, 25,000 Gallons, 523747-EC$1,14900 Pentair IntelliFlo VS+SVRS variable speed pool pump, EC-011057 Pentair IntelliFlo VS+SVRS Variable Speed Pool Pump, 3 HP Max, 3.95 THP, 230V, EC-011057$2,39900 Pentair 170145 cartridge pack for Sta-Rite System 3 S7M120, inner and outer cartridges Sta-Rite 170145 System 3 S7M120 Large and Small Cartridge Set, 25021-0200S and 25022-0201S$48299 Pentair 261055 SM-20-3 2 in. side mount multiport valve kit, front view Pentair 2 in. Multiport Valve Kit for Side Mount Sand Filters, SM-20-3, 261055$29999 Pentair 523770 IntelliChlor Plus replacement controller (HMI), black Pentair IntelliChlor Plus Controller Replacement (HMI), Black, 5237705.0 (1) $38399 Pentair 261152 SM20-2 2 in. side mount multiport valve kit for DE filters Pentair 2" Valve Kit Multiport, Side Mount DE Filters SM20-2, 261152$29799 Pentair 357149 WhisperFlo and IntelliFlo volute housing replacement kit, front view Pentair WhisperFlo and IntelliFlo Volute Housing Replacement Kit, 357149$28799 Pentair MicroBrite Color LED pool light EC-620425, 12 volt, 14 watt, with 100 ft cord Pentair MicroBrite Color LED Pool Light 12 Volt, 14 Watt with 100' Cord, EC-620425$61900 Pentair 59023400 FNS Plus 48 sq ft complete DE grid assembly Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400$40199 Pentair Amerlite EC-602128 500W 120V inground pool light with stainless steel facering Pentair Amerlite Pool Light for Inground Pools with Stainless Steel Facering, 500W 120V 50' Cord, EC-602128$43900 Web Price

Questions and answers

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

Where does this o-ring go?
On the drain cap fitting of the filter, where it seals the cap against the tank.
Which filters use it?
Pentair Clean and Clear Plus, Predator and EasyClean aboveground DE systems, American Products Quantum RPM and Eclipse Meteor filters, and ABS 2 in push pull valves.
My drain cap drips. Is this the fix?
Usually. A drain cap that weeps once the pump is running is almost always a flattened, cracked or dried out o-ring rather than a fault with the cap itself.
Is it a genuine Pentair part?
Yes. It is the Pentair OEM o-ring, part number 51005000.
Ask your own question