Pentair Pump 2" Slip 1/2" Union Kit | PKG 188Z
Pentair
SKU: PENPKG188Z
Pentair PKG 188Z — 2" Union Adapter Kit (Pack of 2)
Product Overview
The Pentair PKG 188Z is a genuine OEM two-piece 2" union adapter kit designed to connect 2" slip PVC plumbing to Pentair or Sta-Rite equipment ports with 2" female buttress threads. Ideal for use with pumps, filters, and heaters, this kit provides a secure, leak-free connection and simplifies equipment installation or replacement.
Includes
- (2) Union adapter halves — 2" slip x 2" female buttress thread
- (2) O-rings
- Integrated union nuts
Key Features
- 2" slip connection fits standard Schedule 40 PVC
- 2" female buttress thread connects to compatible Pentair/Sta-Rite ports
- Durable thermoplastic material resists pool and spa chemicals
- Easy installation and removal for maintenance or replacement
- OEM fit ensures precise alignment and reliable sealing
Common Compatibility
Fits a variety of Pentair and Sta-Rite equipment including:
- Heaters: MasterTemp®, Max-E-Therm®
- Pumps: Max-E-Pro®, Dyna-Pro®, Dyna-Glas®, Dyna-Max®
- Filters: System 2® PLDE Series and System 3® SM/SMD Series
Note: Always verify your equipment’s port size and thread type before ordering.
Technical Specifications
- Connection Type: 2" slip x 2" female buttress thread
- Nominal Size: 2" (both ends)
- Material: Chemical-resistant thermoplastic
- Seal: O-ring (included)
- Quantity: Two unions per kit
Installation Instructions
- Turn off power and relieve pressure before starting.
- Clean all mating surfaces and inspect O-rings for damage.
- Apply pool-safe, non-petroleum lubricant to the O-rings.
- Hand-tighten the union nuts until snug—avoid overtightening.
- Restore pressure and check for leaks after installation.
Troubleshooting
- Leaking at union face: Ensure O-ring is seated properly and not damaged.
- Cross-threading: Back off and start the union nut again to align threads.
- Persistent leaks: Replace O-ring or inspect for cracks or warped fittings.
Part Identification
- Manufacturer: Pentair
- Part Number: PKG 188Z
Maintenance Tip
Inspect the union O-rings annually or whenever equipment is serviced. Clean and re-lubricate O-rings periodically to maintain a proper seal. Replace O-rings at the first signs of cracking or flattening for best performance.
Hours Of Operation:
Monday - Friday: 8:00 am to 4:00 pm Phoenix Time
Saturday and Sunday: Closed
- Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
- Handling time is typically only 1 day.
- Any item ordered after 1pm Phoenix time, may not ship same-day.
- Call us if you require expedited shipping and we can give you quotes based on your needs.
Return Policy:
- All products, except as noted below, are eligible for return up to 30 days after receipt of item.
- For returns, an RMA form must be filled out HERE or customers can call for additional help.
- Shipping costs will be deducted from all returned items.
- Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
- Items broken, damaged, or inoperable due to installer error will not be refunded.
- Fill out the return form or give us a call to obtain an RMA and return shipping label.
- There are no returns on the Pentair Colorsync 618031
- No returns on pool cleaners.
- No returns on opened seals and o-rings.
- No returns on capacitors.
- If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
- All products denied upon arrival at customers house WILL be charged the cost to ship.
- Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
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