I got my hands on another Deception and while giving it a full rebuild decided to measure/record factory seal sizes, as well as note alternate sizes (
red font) that I feel improve over certain factory sizes. I know this has been requested in the past, so here you go.
Note: Assume buna-nitrile (durometer 70) unless otherwise specified.
Bolt
Port seals (x2): 013 -->
014 or 2x10
Note: The factory seals seem to be a 013 and make virtually no contact on the body bore. Bumping up one size to a 014 or to a 2x10 allow the seals to actually seal against their bore. Obviously, you're dealing with several tolerances in this location so results may vary. Choose a seal that provides a positive bore seal without excessively dragging.
Ram
Switch: 010 -->
2x5mm
Housing ID front: 011 -->
011 X Ring
Cap front (friction): 010 -->
2x7mm
Cap rear (friction): 010 -->
1.5x7mm
Ram housing OD (x4): 013
Note: The two friction seals are about useless from the factory. The alternate sizes do their job much better. As for the housing ID front seal, an X Ring makes a lot of sense there due to its lube holding ability, durability and improved support. For the ram switch, I felt that the 010 had too loose of a fit in the housing bore, which can allow blow-by and require higher LPR pressure to reach the same results.
Regulators
HPR Piston: 012
LPR Piston: 010
Air transfer
Valve chamber (the big oblong one): TBD
LPR transfer seal (tiny one in very front): 1x2mm
2x seals in front of solenoid: 1x3mm
Valve
Front spool seal: 011 -->
011 X Ring (for the same reason as ram housing)
Rear spool seal: 011 urethane (buna will work but urethane resists nibbling better)
Cap (friction): 012 -->
2x8mm
Housing OD: 1x12mm (the thin one) and 012 urethane (the thick one)
Update 1/26/2021:
HPR Component Order:
Front: Cap --> Brass washer --> spring --> piston (seal end forward)
Believe it or not, I've now seen one installed in the reverse order.
Regulator valve cores:
HPR: M10
LPR: M8
These are commonly found at auto parts stores, Amazon, eBay, etc. I also recommend the proper removal/installation tool.