![GROCO Backing Block f/1-1/4"  1-1/2" Seacocks [BB-2]](http://elcapitan.com/cdn/shop/files/72848XL_{width}x.jpg?v=1683399366) 
              GROCO Backing Block f/1-1/4" 1-1/2" Seacocks [BB-2]
ELC-72848Backing Block for 1-1/4" & 1-1/2" Seacocks
Features:
- Each size fits multiple seacock sizes
- Press threaded brass inserts into the hull side of the backing block into the holes that match the seacock flange
- Rigid 1/2" thickness provides secure installation but is flexible enough to conform to minor hull curvature
- Will not swell or absorb moisture
- Made from an environmentally friendly PVC foam specially formulated for marine applications
Specifications:
- Construction: Bronze
- Box Dimensions: 1"H x 7"W x 9"L WT: 0.25 lbs
- UPC: 742985170148
 
              ![Jabsco Solenoid/Anti-Syphon Valve - 12V [37038-2012]](http://elcapitan.com/cdn/shop/files/101824XL_{width}x.jpg?v=1698721417) 
            ![Dometic EnviroComfort ECD16K-HV AC Retrofit Kit - 115V - 16,000 BTU [9108732755]](http://elcapitan.com/cdn/shop/products/89769XL_{width}x.jpg?v=1644960980) 
            ![Dometic EnviroComfort ECD10K-HV AC Retrofit Kit - 10,000 BTU - 115V [9108732759]](http://elcapitan.com/cdn/shop/products/89768XL_{width}x.jpg?v=1644960982) 
            ![Dometic EnviroComfort ECD16KZ-HV AC Retrofit Kit - 230 V - 16,000 BTU [9108821279]](http://elcapitan.com/cdn/shop/files/89763XL_50f51516-3c00-4a1a-b8b1-773a7d207bde_{width}x.jpg?v=1683774820) 
            ![Shurflo by Pentair BAIT SENTRY 1100 Magnetic Drive Livewell Pump [1700-021-030]](http://elcapitan.com/cdn/shop/products/56082XL_{width}x.jpg?v=1644930508)