Praher 2" MPT x 2" Slip Full Flow Union w/ O-Ring | 200-903
Praher
SKU: PRA200903
Praher 200-903 2" Slip × 2" MPT Full-Flow Union with O-Ring
The Praher 200-903 is a full-flow union fitting designed for use with 2" pool and spa plumbing — commonly used on Praher backwash and multiport valves. It provides a robust, leak-resistant connection that’s easy to install and service, making it ideal for both new installations and maintenance work.
Key Features
- 2" male-pipe-thread (MPT) × 2" slip (socket) union — simple, versatile connection for many plumbing setups.
- Full-flow design — minimal flow restriction, maintaining optimal water circulation and system efficiency.
- Includes a durable O-ring seal — ensures reliable, watertight connection without the need for additional sealant or tape.
- Made from pool-rated PVC — corrosion- and chemical-resistant for long service life in pool and spa environments.
- Easy to disassemble and reassemble for valve or plumbing maintenance — convenient for seasonal service, winterization, or equipment swaps.
Specifications
- Manufacturer: Praher Plastics
- Part Number: 200-903
- Connection 1: 2" Male Pipe Thread (MPT)
- Connection 2: 2" Slip / Socket (Schedule 40 PVC)
- Seal: Integrated O-ring (usually EPDM / pool-safe material)
- Material: Grade-1 PVC (pool-rated)
- Typical Use: Unions on Praher backwash / multiport valves or 2" PVC plumbing systems
Why Use 200-903
If you’re installing or replacing a 2" valve — especially from Praher — the 200-903 union offers a dependable, OEM-grade connection that supports full water flow and resists leaks. It’s an excellent choice for new pool builds, repairs, or service-professional plumbing work where reliability and ease of maintenance matter most.
Installation & Maintenance Tips
- Ensure the slip side is solvent-welded into the PVC plumbing per standard Schedule 40 PVC cement procedures.
- Thread the MPT side into the valve housing hand-tight, then finish with a quarter turn if needed — avoid over-tightening to protect threads and O-ring seal.
- Before first use and after seasonal shutdown, inspect the O-ring for wear or cracks and replace if needed to maintain leak-free service.
- When removing for maintenance, slightly back off the union to relieve pressure before loosening to avoid stress on valve components.
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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