Sintered Polypropylene

Specifications: 150 max working pressure

and polypropylene seats

when empty

Integrated

MT-RSR Prema PRI-4 Insert Repair, For 1/4" Hole, 7-1/2" Long, Reinforced Blue Poly Wrapped (25 bx) PRE-PRI-4 high density polyethylene Sintered PolypropylenePrema PRI 4 Insert Repair, For 1 4" Hole, 7 1 2" Long, Reinforced Blue Poly Wrapped (25 bx) PREMA offers a variety of rubber and fiber reinforced inserts for filling the injury in all types of tubeless tires. NOTE: Remove the tire from the rim and inspect for damage before installation of a repair unit or filler material. Interchangeable Part Numbers: PPRI4