EPOOLSUPPLY - FROM OUR STORE TO YOUR DOOR

Pentair TR100/140C Tee Diffuser Assembly | 156355

Pentair  |  SKU: 156355
Sale price $8995 USD Regular price $9499

Selling fast!
Grab yours while you can

This part is a genuine Pentair OEM diffuser assembly. Use within Pentair’s Triton filter systems in compliance with warranty terms. For full warranty coverage, consult the Pentair Triton filter manual.

Q: Will this diffuser work in both TR100C and TR140C filters? A: Yes. It’s designed to be compatible with both TR100 and TR140C series filters. Q: Does it come with O-rings included? A: Most listings show it as the diffuser assembly only; O-rings or gaskets are often sold separately.

Delivery and Shipping

  • FREE SHIPPING IN THE USA
  • WORLDWIDE SHIPPING AVAILABLE
  • 30 DAY RETURNS
  • UPGRADED | EXPEDITED SHIPPING AVAILABLE

Resources & PDF Downloads

Description

Pentair TR100/140C Tee Diffuser Assembly | SKU 156355

Tee diffuser for even water distribution in Pentair TR100C / TR140C sand filters. OEM quality.

Features

  • Promotes uniform water distribution over filter media to prevent channeling :contentReference[oaicite:5]{index=5}
  • Constructed of chemical-resistant materials to resist pool environment wear :contentReference[oaicite:6]{index=6}
  • OEM replacement ensures perfect fit and restores system balance :contentReference[oaicite:7]{index=7}
  • Drop-in installation minimizes service downtime :contentReference[oaicite:8]{index=8}
  • Helps return filtration efficiency to factory specs :contentReference[oaicite:9]{index=9}

Description

The Pentair Tee Diffuser Assembly TR100/140C (156355) is an essential internal plumbing component that evenly channels incoming water across the sand bed, optimizing filtration performance. Built to resist chemical corrosion, pressure cycling, and UV exposure, it maintains structural integrity over repeated use. As a genuine Pentair part, you retain original flow patterns and hydraulic balance when replacing damaged or worn parts. Use this diffuser to restore your filter’s media coverage and protect against inefficient bypass or uneven loading.

Pro Tip

Always replace O-rings/gaskets and apply a light coat of pool-safe silicone lube before seating. Confirm the diffuser tee is square in the filter body to avoid stress on the laterals and uneven flow.

Related Parts

Installation Tips

Always depressurize the filter before opening. Use correct O-rings/gaskets and lube them. Seat the diffuser so it is level and free of stress to internal laterals. Misalignment can cause uneven flow or premature wear.

Specifications

  • SKU
    156355
  • UPC or GTIN
    788379670061
  • Product Type
    Diffuser / Internal Manifold Component
  • Size/Connection
    Fits TR100C / TR140C internal plumbing
  • Materials
    Chemical-resistant thermoplastic (pool grade)
  • Dimensions
    17.2 in, 4.05 in, 4.05 in
  • Weight
    1.87 lb
  • Warranty

Product Warranty

We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:

Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.

Price Match Guarantee

Payment & Security

Payment methods

  • Ach Direct Debit
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • JCB
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • USDC
  • Visa

Your payment information is processed securely.

EPOOLSUPPLY DOES not store credit card details nor have access to your credit card information.

REVIEWS FROM OUR CUSTOMERS

AWESOME! EXTRAORDINARY! EXCEPTIONAL CUSTOMER SERVICE! ePoolSupply is the BEST pool supply company in the USA!

My Pentair 520 clean & clear filter housing top cracked and more than 1/3 my pool water pumped into my yard. . I ordered a new filter housing cover on Wednesday at 2:30 pm. By 2:30 pm on Thursday, FedEx delivered a new Pentair 520 clean & clear filter housing top to my front door.

Best Pool Supply company ever! Thank you ePoolSupply! Your team is the best! This always has and always will be my go to pool supply company.

Charles H.

GOOGLE REVIEW

Great experience. They had the best price and shipping was very fast.

Michael S.

Google Review

This company is awesome because its people care to provide a great service. I will use them now exclusively

Phillip S.

Google Review

Such an easy transaction. DJ was very helpful. Highly recommend!

Michael T.

Google Review