Fuelab Diaphragm & O-Ring Kit for 515xx/525xx Series Regulators - Large Seat

All sales are final on custom order products. PSI Proformance Inc. offers a Limited Lifetime Warranty on workmanship to the original purchaser. This warranty covers defects in materials and craftsmanship under normal use. Refunds: Not available on custom orders. Exchanges: May be permitted only with written approval from PSI Proformance Inc. Customer Responsibility: The customer is responsible for all associated labor and shipping costs for exchanges or warranty claims.