DELTA 430 is ISM saddle compatible with the following models: PN 3.0 and PN 3.1 Features and Benefits AERODYNAMIC LOCATION. Mounts to saddle, hiding in body’s draft. HIGHLY ADJUSTABLE. Can adjust cage angle and cage height for a perfect custom position. STABLE DESIGN. Stiffest mount on market with stainless steel arms. FLARED CAGE DESIGN. Makes inserting bottle easy. HIGHEST GRIPPING CAGE. 10lbs grip (approx) on bottle to prevent bottle launches. ANTI-VIBRATION. Locking hardware for safety and security REPAIR STORAGE OPTIONS. Compatible with AERO POUCH 300 bag or MULTI-STRIKE REPAIR HOLDER. XLAB does not recommend that the two storage options be used together due to the additional weight load on the rear carrier's mount.