
Waterway 319-3090B Pump Shaft Seal Kit – Carbide/Silicone, Same as 310-3090
Description
Waterway 319-3090B Pump Shaft Seal Kit – Viton Carbon Graphite, 316 Stainless Steel
Description:
The Waterway 319-3090B Pump Shaft Seal Kit is a genuine replacement part engineered to prevent water leakage and maintain optimal pump performance. Made from high-quality Viton carbon graphite and encased in 316 stainless steel, this seal is built to withstand harsh pool and spa environments, including high temperatures and chemical exposure.
Features:
Genuine Waterway replacement seal kit
Made from Viton carbon graphite with 316 stainless steel casing
Prevents water from entering the motor housing
Ideal for high-heat and chemically aggressive conditions
Simple to install for quick pump maintenance
Specifications:
Brand: Waterway
Part Number: 319-3090B (Same as 310-3090)
Material: Viton carbon graphite, 316 stainless steel
Shaft Size: 5/8 inch
Seal OD: 1-5/8 inches
Seal Height: 25/32 inch
Mating Ring Thickness: 13/32 inch
UPC: 806105561947
Condition: New
Compatibility:
Fits select Waterway pump models, including:
Viper 56-Frame Pumps
Iron Might Circulation Pumps (newer style with 310-7820 & 310-8020 impellers)
Spa Flo II Pumps (newer style with wet ends 310-7800 to 310-7840, impellers 310-8000B to 310-8040B)
E-Series Center Discharge Pumps (wet ends 310-1130, 310-1140, 310-1141)
Note:
Timely replacement of your shaft seal helps maintain your pump’s efficiency and extends its service life.
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.




