Fast Access ISO-250 Blind Door Replacement O-Ring Seal.
This is a replacement O-ring door seal for the Fast Access ISO 250 Blind Door (no window). It is used on both the ISO-K 250 and ISO-F 250 blind doors. This seal is field replaceable.
Check the O-ring door seal regularly to make sure it doesn't leak and is still pliable and not permanently deformed. Replace the seal as needed. Its always a good idea to keep a spare on hand.