TYPE FF-2 full function trailer valve featuring a single-valve system for simplified installation, maintenance, and troubleshooting. Integrated pressure protection and anti-compounding functions help ensure safe and reliable trailer brake operation. REPLACEMENT Replaces Haldex KN28601X, KN28601, and KN28601RX; Mack 5396KN28601; and Midland KN28601 and N4304AB. SPECIFICATIONS Crack pressure: 3.0 PSI. Reservoir port: 1/2". Control port: 1/4". Supply port: 3/8". Spring brake ports: 2 × 3/8". Delivery ports: 4 × 3/8". Approximate weight: 3 lbs. FITMENT Please contact your dealer to confirm the correct part number for your application. Verify that this valve replaces your original component before purchasing. WARRANTY Covered by a 1-Year Unlimited Mile Warranty, providing assurance of product quality and replacement support if an issue occurs within the warranty period.