*UC* D Sized STEPPED ULTRA Cup Inserts for Concealment or Storage for all "D" Tubes
These are our NEW ULTRA Cup Inserts for our "D" sized tubes only . Each piece is made from aircraft grade aluminum and fit perfectly into the tubes. Fill with jewelry, cash, coins, matches, food tablets or dozens of other items or stepped for Solvent Traps and perfect filter placement and stability.
These NEW cups thread together for a water tight seal for safe keeping of your valuables and or leakproof for your cleaning solvent.
"UC" comes with 7 cups and 1 end spring.
THESE CUPS ONLY WORK WITH THE D SIZED TUBES NOT CARBON FIBER TUBES