Air-Lock

Features: Available Sizes: Micro 12.5mm x 13.5mm, Small 1/2", Medium 3/4", and Large 1" Available in a 3 Pack or Bulk Shallow screw channel for adjustable fixed positioning Deep screw channel for...

Air-Lock Strike Indicators Package Options  Single Pack - Comes with 3 indicators and 2 spare nuts in the package. Comes with CLEAR color option or MIX color option (One of each White, Pink...

Comes in a pack of 3. NEW DESIGN The new biodegradable foam has more benefits beyond keeping our waterways cleaner.  The new design out-performs the original plastic design in every way. 30%...

Air-Lock Strike Indicators - EVA Biodegradable (BULK) These Airlocks are sold individually. Choose your size, color, and the amount you want. These do not come with extra nuts, like the mix...