Part 3 in the BL-1421Q and Part 6 in the BL-121/122 User Manuals.

This consumable part can be readily replaced by removing the plastic cover revealing the Phillips head locking screw. Simply unscrew while holding the coupler and replace.

(BL-DS1412)

Model Code BL-DS1412
Product Weight 50g
Chamber Dimensions 40mm x 10mm
Barcode # 9355480001889
Brand Pro-line