REGO A3217-21 Upper Flange O-Ring Seal for A3217 3″ LP Gas Valve

SKU: A3217-21

Weight	1.5 lbs
Dimensions	9 × 7 × 1 in

$27.90

In stock — available to order.

Sold individually. Each quantity ordered is one unit. Kits are one complete kit; products sold by length use the stated length unit.

Same-item volume pricing

Quantity	Unit price	Saving
1–4	$27.90	0%
5–9	$26.51	5%
10+	$25.11	10%

Estimate for this quantity before shipping. Tax display follows store settings. Existing cart quantities can increase the tier. Only one offer applies; a coupon replaces automatic pricing. For 20+ units, contact support for a quote.

Available to order.

Bulk quantity & quote

Quantity needed

Enter the total quantity you need. We will confirm availability and a quote before you order.

Need a firm ship date? Availability may include supplier stock. Confirm availability before ordering for time-sensitive work.

REGO A3217-21 Upper Flange O-Ring Seal for A3217 3" LP Gas Valve

Specifications & product details

Overview

The REGO A3217-21 Upper Flange O-Ring Seal is a genuine OEM replacement seal designed specifically for REGO A3217 Series 3-inch internal valves used in propane and LP gas systems.

This molded elastomer O-ring installs at the upper flange connection, providing a reliable, gas-tight seal essential for safe valve operation. It is commonly replaced during routine maintenance, valve rebuilds, or leak repair service to ensure continued compliance and dependable performance.

Manufactured to REGO’s exact specifications, the A3217-21 seal is engineered for compatibility with propane and LP gas media while maintaining long-term elasticity and sealing integrity.

Key Benefits:

Genuine REGO OEM upper flange seal
Designed for A3217 Series 3" internal valves
Compatible with propane & LP gas systems
Ideal for maintenance and service technicians
Supports safe, leak-free valve operation

Product details

Part / SKU	A3217-21

Compatibility & part-number help

Match the manufacturer part number and equipment model to the listing. Check connection sizes, fuel type, pressure or capacity, voltage and dimensions where applicable. A similar appearance or part number alone does not confirm compatibility.

For help, send a parts inquiry with the part number, equipment model, label photos and quantity. Manufacturer documents and item-specific information, when supplied, are in the product details above.

Shipping & availability

Availability may include our inventory and supplier sources. Listed stock does not by itself confirm immediate dispatch. Ask us to confirm a ship date before ordering for time-sensitive work.

Shipping methods and charges appear at checkout where available. Freight, oversized and specially handled items may require a quote. See our Shipping Policy for processing periods, restrictions and delivery information.