same day shipping clock icon
free shipping box icon
price tag icon

Groco Seacock Backing Block

free shipping
SKU:
GRO-BB.1
Availability:
In Stock - Ships Today
Order within and your order ships today!
List Price: $52.89
Starting At: $45.99
(You save $6.90

Earn Captains Club Points Learn More

FREQUENTLY BOUGHT TOGETHER

  • Choose Options

Description

Groco Seacock Backing Block

Use the Groco Seacock Backing Block to improve flanged seacock installation. Groco backing blocks are made from an environmentally-friendly PVC foam specially formulated for marine applications. The rigid 1/2" thickness provides secure installation but is flexible enough to conform to minor hull curvature. To install, press threaded brass inserts into the hull side of the backing block into the holes that match the seacock flange.

  • Each size fits multiple seacock sizes
  • Will not swell or absorb moisture

Specifications:

  • Model: BB-1
    • Fits Seacock Sizes 750 and 1000
    • Backing Block Diameter: 4.29"
    • Insert Threads: 5/16-18
  • Model: BB-2
    • Fits Seacock Sizes 1250 and 1500
    • Backing Block Diameter: 5.38"
    • Insert Threads: 5/16-18

California Residents: warning sign WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov

PRODUCT REVIEWS

QUESTIONS & ANSWERS

Other Details

Google Product Type:
Thru Hulls
Wiser:
Yes

Customers Also Viewed

Groco Tri-Flanged Ball Type Seacock
List Price: $53.46
Starting At: $46.49

Groco FBV Series Tri-Flanged Ball Type Seacock Groco FBV Series Ball-Type Seacocks are manufactured for full flow and feature a triangular base. The patented field reversible handle allows you...

Choose Options
Groco Bronze Thru Hull With Nut
List Price: $24.99
Starting At: $14.49

Groco TH Series Standard Length Bronze Thru Hull w/ Nut Groco TH Series Thru Hulls are constructed of C83600 bronze and feature a NPSM / NPT combination thread. These thru hulls are available in a...

Choose Options
Groco 90° Bronze Elbow Pipe To Hose
List Price: $10.91
Starting At: $9.49

Groco 90 Degree Bronze Elbow Pipe To Hose Fitting This Groco pipe to hose fitting provides a 90 degree male NPT to hose connection. It is constructed of C83600 bronze and is available in a variety...

Choose Options
Groco Pipe To Hose Bronze Fitting
List Price: $6.89
Starting At: $5.99

Groco Pipe to Hose Bronze Fitting Groco bronze Pipe to hose fitting. Standard Flow - the hose ID is the same as the pipe size (ie: PTH-750 has 3/4" NPT pipe thread and accepts 3/4" ID hose)...

Choose Options
Groco In-Line Ball Valve
List Price: $25.86
Starting At: $22.49

Groco IBV Series Full-Flow Flanged In-line Ball Valve The Groco IVB Series In-Line Ball Valves are full-flow valves with a patented selectable handle rotation. The handle has a square hole to accept...

Choose Options
Groco Hi-Speed Strainer With Nut
List Price: $46.99
Starting At: $27.49

Groco Hi-Speed Strainer with Nut The Groco Hi-Speed Strainer is a NPT combo scoop thru hull that is designed for increased flow compared to standard thru hulls. This strainer is constructed of...

Choose Options
Groco Full Flow Pipe To Hose Bronze Fitting
List Price: $18.49
Starting At: $9.99

Groco Full Flow Pipe To Hose Bronze Fitting The Groco pipe to hose fittings are made of C83600 Bronze for full flow and corrosion resistance. Product Features: UL Listed 647B 1" NPT 1-1/8"...

Add to Cart
Groco Bronze Pipe Nipple
List Price: $9.19
Starting At: $7.99

Groco Bronze Pipe Nipple Groco's PN Series cast bronze pipe nipples provide exact alloy compatibility for making inter-connections between numerous marine components such as seacocks, strainers, and...

Choose Options
Sierra Shields Marine Exhaust/Water Hose 3/4"
List Price:
Starting At: $46.99

Sierra Shields Marine Exhaust/Water Hose 3/4" Sierra Shields Marine Exhaust/Water Hose 3/4" is made of black, heavy-walled synthetic rubber. The hose is resistant to engine heat,...

Choose Options
Groco Bronze Raw Water Intake Strainer w/Plastic Basket
List Price: $149.96
Starting At: $130.40

Groco ARG Series Raw Water Strainer w/ Plastic Non-Metallic Basket Groco ARG Series Intake Strainers are equipped with premium features for long-lasting use and ease of installation. This intake...

Choose Options