Water heating Coupler Type
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![Bell & Gossett P78791 Coupler Sleeve (for Series 1510, VSC/VSCS, 3510) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/b4053d546f022cf5778b572e2d9f78f0_bbc2d7a4-96f3-4acc-a690-6c037283f5b8_medium.jpg?v=1720004928)
P78791 | Coupler Sleeve (for Series 1510, VSC / VSCS, 3510) | Bell & Gossett
Brand: Bell & Gossett
SKU: P78791
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![Bell & Gossett 186410 Coupler (PD-38, PD-40, Obs. PD-39, 60 "A") | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/186410-3_96767f3d-36fc-4676-a802-0feea12b2002_medium.jpg?v=1720004676)
186410 | Coupler (PD-38, PD-40, Obs. PD-39, 60 "A") | Bell & Gossett
Brand: Bell & Gossett
SKU: 186410
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![Bell & Gossett 118723 Coupler (2-1/2", LD-3, HD-3, Obs. HLD-3, Obs. HHD-3) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/118723-3_21bc851b-fef6-47a3-a628-ba9d44d024b7_medium.jpg?v=1720004641)
118723 | Coupler (2-1 / 2", LD-3, HD-3, Obs. HLD-3, Obs. HHD-3) | Bell & Gossett
Brand: Bell & Gossett
SKU: 118723
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![Bell & Gossett 118474 Coupler Mount Set | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/118474-1_6aede88b-bbd5-4a7e-b4a3-b114b1c83e71_medium.jpg?v=1720004610)
118474 | Coupler Mount Set | Bell & Gossett
Brand: Bell & Gossett
SKU: 118474
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