Ancor Adhesive Lined Heat Shrink Tubing (ALT) - 3/4" x 12" - 4-Pack - Yellow [306924] Brand_ProMariner O-rings - Silicone and EPDM

O-rings - Silicone and EPDM

So the only piece left for saltwater to attack is this little zinc anode

20M RayNet to RayNet Cable for e & c Series

MATRIX 87C

High-speed pulse rate transmission of 5000 times per minute for enhanced shallow water detection

Ancor Adhesive Lined Heat Shrink Tubing (ALT) - 3/4" x 12" - 4-Pack - Yellow [306924] Brand_ProMariner O-rings - Silicone and EPDMAdhesive Lined Heat Shrink Tubing (ALT) 3 4" x 12" 4 Pack Yellow Package of 4 Yellow 12"(30. 5cm) long sections with a 3 4"(19mm) diameter that shrinks to 1 4"(6. 4mm) Wire Range: 8 2 0 AWG Features: Cross Linked polyolefin tubing is much stronger than PVC tubing and will not burn like PVC Heat activated adhesive lining provides impervious seal to salt water, oil, acids, and sunlight as well as providing strain relief Highest shrink ratio shrinks to 1