Welcome to Defender Canada! 
Whale Clamping Ring Kit - AS0353 Item # 887835
Description
Clamping Ring Kit for Whale / Henderson Compac 50, BP0350 Low Profile Underdeck and Through Deck / Bulkhead Bilge Pump.
In the Box:
- (2) Clamping rings
- (2) Nuts - M6
- (2) Screws - M6 x 40