Digging through my parts bins, I came across 2 Poseidon 2nd Stage service kits. Make offer. Shipping additional (USPS flatrate envelope or first class if you must).
Details:
Service-kit No. 3551
for 2nd Stage: No. 1133, 3354, 3536
Original spare parts kit, includes ziptie, rubber plate and 4 O-rings.
Too lazy to upload pics, PM me your email and I'll send you photos but these are pretty standard.
