Pressure Vessels & O-Ring Kits

About Product Availability

Our suppliers are doing their best to keep up with demand. However, some products have been difficult to keep in stock. Our product pages display the typical shipping lead times. If you need your item in a hurry, please contact us before you place your order to confirm availability.


Fiberglass RO pressure vessels for seawater reverse osmosis (RO) watermakers and desalinators.

Showing 1–12 of 17 results

  • Composite Concepts 2540 Pressure Vessel

    Membrane Pressure Vessel, Fiberglass, ComCon, 2.5×21 in

    $395.00     Add to cart
  • Composite Concepts 2540 Pressure Vessel

    Membrane Pressure Vessel, Fiberglass, ComCon, 2.5×40 in

    $495.00     Add to cart
  • Composite Concepts 4040 Pressure Vessel

    Membrane Pressure Vessel, Fiberglass, ComCon, 4×40 in

    $845.00     Add to cart
  • Pressure Vessel O-Ring Kit

    Pressure Vessel O-Ring Kit – A&M Composites 2.5″

    $11.90     Add to cart
  • Pressure Vessel O-Ring Kit

    Pressure Vessel O-Ring Kit – Applied Membranes AMI 2.5″

    $10.94     Add to cart
  • Pressure Vessel O-Ring Kit

    Pressure Vessel O-Ring Kit – AquaMarine 2.5″

    $21.24     Add to cart
  • Pressure Vessel O-Ring Kit

    Pressure Vessel O-Ring Kit – Codeline / Matrix 2.5″

    $12.62     Add to cart
  • Pressure Vessel O-Ring Kit

    Pressure Vessel O-Ring Kit – Composite Concepts 2.5″

    $18.50     Add to cart
  • Pressure Vessel O-Ring Kit

    Pressure Vessel O-Ring Kit – Composite Concepts 4″

    $22.25     Add to cart
  • Pressure Vessel O-Ring Kit

    Pressure Vessel O-Ring Kit – First Line SK 2.5″

    $14.99     Add to cart
  • Pressure Vessel O-Ring Kit

    Pressure Vessel O-Ring Kit – Hydrocomponents HCTI 2.5″

    $19.97     Add to cart
  • Pressure Vessel O-Ring Kit

    Pressure Vessel O-Ring Kit – Sea Recovery/HRO 3″

    $19.50     Add to cart

Showing 1–12 of 17 results