Our Pick-up Location

3280 Steeles Ave W, Unit #22, Concord, ON L4K 2Y2

Orders are available for pick-up at front desk after you receive a confirmation email. Please do not arrive early as we will not always be able to retreive your package from the warehouse immediately!

Please note that Vancouver location is a warehouse only and is not open for pick-up!

Operating Hours

Day April to October November to March
Mon 9AM - 6PM 9AM - 5PM
Tue 9AM - 6PM 9AM - 5PM
Wed 9AM - 6PM 9AM - 5PM
Thu 9AM - 8PM 9AM - 5PM
Fri 9AM - 6PM 9AM - 5PM
Sat Closed Closed
Sun Closed Closed

Can we help you find anything?

Got the SKU number? You can type it into the search field and if we have that item, you'll get an exact match!

Looking for a Pool Heater Part? We have PDFs and interactive schematics of all major heater models to help you find what you need.

Not sure which heater or pump is right for your pool? We have step-by-step equipment finders to help you narrow down your choices. Additionally, our pool equipment can be filtered by all relevant parameters.

General questions about pool equipment? Check the FAQ - answers to all the common pool owner's questions, compiled by our experts.

Still lost? Email or give us a call and our knowledgeable staff will answer any questions you have!

1-844-416-7665 416-623-9334
Canada-Wide Shipping Look for Free Shipping label on select items!
Pick-up Location 3280 Steeles Ave W, Unit #22
Concord, ON • Click for Map & Hours
PLEASE NOTE Pricing is very volatile and is subject to change at the time of order and/or shipping.
Special Order

Pentair 3/4 in. Union

Write a review
List price: $80.00
$69.99
You save: $10.01 (13%)
38404-4097S
Price in points: 1400 points
Special Order
+ −
I acknowledge that all replacement parts are final sale and installation of this product must be performed by a professional technician; self-installation can void manufacturer's warranty.
Add to wish list Add to comparison list

Quick Overview

Pentair/Sta-Rite 38404-4097S 3/4 in. Union

  • Get Installation Quote

Pentair/Sta-Rite 38404-4097S 3/4 inch Replacement Union 

When you need a new union for your pool or spa heater, not just any part will do. A tight seal is essential to the proper functioning of your pool heater, and if you're in need of a new replacement union for your Pentair Sta-Rite Max-E-Therm or MasterTemp heater, the 38404-4097S Pentair Replacement Union (3/4 inch) may be just the part you need.

Using the 38404-4097S Pentair Replacement Union (3/4 inch)

The 38404-4097S Pentair Replacement Union (3/4 inch) provides a match for the original unions that plumb Max-E-Therm and MasterTemp pool and spa heaters. This manufacturer-direct part provides matching size, threading, and the durable materials needed withstand high water flow and fluctuating temperatures.

Every experienced pool owner knows the importance of a reliable and leak-proof seal. Be sure that the 38404-4097S Pentair Replacement Union (3/4 inch) is a match for your existing Pentair Sta-rite heater for a reliable and long-lasting plumbing solution.

Used with:

  • Pentair ETi 400 Heater - ETi 400
  • Pentair MasterTemp 125 Above Ground Heaters, Natural Gas - 125NA (461058, 461059)
  • Pentair MasterTemp 125 Above Ground Heaters, Propane - 125LP (461060, 461061)
  • Pentair MasterTemp Heaters, Natural Gas - 175NA (460792), 200NA (460730), 250NA (460732), 250HD (460806), 300NA (460734), 400NA (460736), 400HD (460805)
  • Pentair MasterTemp Heaters, Propane - 175LP (460793), 200LP (460731), 250LP (460733), 300LP (460735), 400LP (460737)
  • Sta-Rite Max-E-Therm Heaters, Natural Gas - SR200NA, SR200HD, SR333NA, SR333HD, SR400NA, SR400HD
  • Sta-Rite Max-E-Therm Heaters, Propane - SR200LP, SR333LP, SR400LP

Might be compatible with older models as long as the part number is listed in the product manual

No posts found

Write a review

Related Products

NOTE: Product images are for illustration purposes only and may not exactly match the actual product due to seasonal model, color or design changes. When shopping for parts we strongly recommend to check the SKU or "Part Number" which is listed on each product page. If you are unsure whether this is the correct product or need assistance please contact us.

Just a quick reminder - Toronto Pool Supplies is an online-only store. Our Concord, ON location is a pickup point, not a retail store and we cannot service walk-in customers. If you want to pick up your items in person please place an order online first and we will email you when it's available for pickup.

Hours: Mon-Wed: 9AM-6PM / Thu: 9AM-8PM (Extended) / Fri: 9AM-6PM