Proprietary ink and delivery system used exclusively in Rite in the Rain Pens will write through water
They can pump to the surface from as deep as 250 feet (76
Replacement Drain Port Adapter (BFPCHPVCDRAINADX)
Proprietary resin grade virgin PTFE bladder for long life
Bonomi 2 Inch x 1-1/2 Inch Copper Press M/F Reducing Coupling - Pack of 4
Global O-Ring K-Flange O-Ring Assortment Kit - Viton (Fkm) 90 Durometer - 70 Pieces (7 Sizes) related_geotech-geopc350-pneumatic-cycle-counter Proprietary ink and delivery systemK Flange O Ring Assortment Kit Viton (Fkm) 90 Durometer 70 Pieces (7 Sizes) FKM is a well known high performance rubber that has excellent resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, aromatics, and many organic solvents and chemicals. Performs Well In: Hydrocarbon Automotive, Aviation Fluid; Reciprocating Engine Lubricating Oils (SE SF Grade); Aliphatic Hydrocarbon Process Fluids; Aromatic Hydrocarbon