
Waterway 417-2201B – 2½″ Union Tailpiece for Inground Filters
Description
The Waterway 417-2201B is a genuine 2½-inch union tailpiece designed for inground pool filter systems. This part provides a secure and leak-resistant connection between plumbing and filter components, commonly used with Waterway Crystal Water cartridge and DE filters.
Product Features:
Genuine Waterway replacement part
2½″ union tailpiece with built-in O-ring groove
Designed for inground filter systems
Allows for easy installation and removal
Durable construction for long-term performance
Compatible with piston-style O-rings (not included)
Specifications:
Brand: Waterway
Model Number: 417-2201B
Type: Union Tailpiece
Size: 2½-inch connection
Material: High-strength plastic
This tailpiece is essential for maintaining a proper seal and ensuring efficient flow in your pool filtration system. Ideal for replacing worn or damaged fittings.
Shipping & Returns
Shipping: We offer free standard shipping on all orders within the contiguous United States (lower 48). We do not currently ship to Alaska, Hawaii, or Puerto Rico. Any other restrictions will be shown at checkout. We do not currently ship internationally. Orders ship within 1 to 2 business days, and delivery typically takes 4 to 6 business days after shipping, for a total of about 5 to 8 business days from your order date.
Tracking information is emailed once your order ships. We do not currently offer international shipping. See our full Shipping Policy for full details.
Returns: Unused items in their original packaging may be returned within 30 days of delivery. To start a return, request a Return Merchandise Authorization (RMA) by emailing support@nationalpoolsupply.com or calling +1 978-222-0628 with your order number and the reason for the return (include photos if the item is defective, damaged, or incorrect). Once your RMA is approved, ship the item with your RMA number to: DHB Enterprises LLC / National Pool Supply, 30 Log Bridge Rd, Building 300, Unit 301, Middleton, MA 01949. Change-of-mind returns: you pay return shipping, and a 15% restocking fee applies; original shipping costs are not refunded. Defective, damaged, or incorrect items reported within 30 days of delivery are returned at no cost to you with a prepaid label, and no restocking fee applies. See our full Refund and Returns Policy for full details.
Warranty
Manufacturer Warranty:
This product carries the manufacturer's warranty, where applicable. Warranty terms, coverage, and exclusions are set by the manufacturer. Warranty claims are filed directly with the manufacturer; we do not process warranty claims or offer a separate warranty of our own. If you need the manufacturer's contact details, contact us and we will share them. See our Warranty page for details.

Pool and Spa Parts & Supplies
Why Choose National Pool Supply?
We're dedicated to offering pool and spa products from leading brands. At National Pool Supply, your pool’s care is our priority, and we’re here to make your experience effortless.




