Question: Where do I get rectangular gasket kit that fits Amsco Steris sterilizer?
Answer: You may get the DOOR GASKET KIT HERE 

Details
Includes: Door Gasket & (32) 1/4-28 Socket Head Screw  Also included in: PM Pack (Door, 24″ x 36″)  Fits: Rectangular 24″ x 36″ Door  Amsco / Steris sterilizer

VIDEO

Thank you –
~Shlomo Savyon
1-800-762-1586
Your Sterilizer expert