Colonial Bronze 378BB Round Back-to-Back Shower Door Knob Kit in Oil Rubbed Bronze

Colonial Bronze 378BB Round Back-to-Back Shower Door Knob Kit in Polished Nickel

378BB Back-to-Back Shower Door Knob

378BB-M4XM4

Round Back-to-Back Shower Door Knob Kit.

Colonial Bronze machines the 378BB Back-to-Back Shower Door Knob from solid brass, 94% recycled content, and finishes it by hand in Torrington, Connecticut. A complete kit: this kit fits 3/8 in. and 1/2 in. glass.

Twelve finishes are stocked for this kit. By special order there are 37 further hand-worked finishes, including distressed.

Finishes on this kit are covered by Colonial Bronze's Finishes for Life warranty. This kit is SCS Global certified GREEN. Colonial Bronze catalog page 20.

Regular price$140.63

Shipping calculated at checkout.

Matte Satin Brass CB-M4living finish

Brass hand worked to an even matte surface, without directional grain or shine.

Finish 12 finishes

Finish

CB-M4

CB-M5

CB-5

CB-3A

CB-14

CB-15

CB-10B

CB-M20

CB-M19

CB-26

CB-M15B

CB-MGRA

Special Finishes available on this piece.

Colonial Bronze hand finishes every piece in Torrington, Connecticut. 37 finishes beyond the stocked 12 are available by special order, including distressed and custom finishes. Lead time matches the stocked program at approximately 4 weeks plus transit. Contact the showroom to specify a special finish.

Contact the showroom to order a special finish

Projection: 1"
Width / Diameter: 1.25"

Lead Time

Hand finished to order by Colonial Bronze in Torrington, Connecticut. Approximately 4 weeks plus transit to our Calgary showroom.

Quantity

[{"id":45148741730504,"title":"Matte Satin Brass","option1":"Matte Satin Brass","option2":null,"option3":null,"sku":"378BB-M4XM4","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"378BB Back-to-Back Shower Door Knob - Matte Satin Brass","public_title":"Matte Satin Brass","options":["Matte Satin Brass"],"price":14063,"weight":141,"compare_at_price":14063,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":45148741763272,"title":"Matte Antique Satin Brass","option1":"Matte Antique Satin Brass","option2":null,"option3":null,"sku":"378BB-M5XM5","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"378BB Back-to-Back Shower Door Knob - Matte Antique Satin Brass","public_title":"Matte Antique Satin Brass","options":["Matte Antique Satin Brass"],"price":14063,"weight":141,"compare_at_price":14063,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":45148741697736,"title":"Antique Brass","option1":"Antique Brass","option2":null,"option3":null,"sku":"378BB-5X5","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"378BB Back-to-Back Shower Door Knob - Antique Brass","public_title":"Antique Brass","options":["Antique Brass"],"price":14063,"weight":141,"compare_at_price":14063,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":45148741664968,"title":"Unlacquered Polished Brass","option1":"Unlacquered Polished Brass","option2":null,"option3":null,"sku":"378BB-3AX3A","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"378BB Back-to-Back Shower Door Knob - Unlacquered Polished Brass","public_title":"Unlacquered Polished Brass","options":["Unlacquered Polished Brass"],"price":14063,"weight":141,"compare_at_price":14063,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":45148741796040,"title":"Polished Nickel","option1":"Polished Nickel","option2":null,"option3":null,"sku":"378BB-14X14","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"378BB Back-to-Back Shower Door Knob - Polished Nickel","public_title":"Polished Nickel","options":["Polished Nickel"],"price":14063,"weight":141,"compare_at_price":14063,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":45148741828808,"title":"Satin Nickel","option1":"Satin Nickel","option2":null,"option3":null,"sku":"378BB-15X15","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"378BB Back-to-Back Shower Door Knob - Satin Nickel","public_title":"Satin Nickel","options":["Satin Nickel"],"price":14063,"weight":141,"compare_at_price":14063,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":45148741861576,"title":"Oil Rubbed Bronze","option1":"Oil Rubbed Bronze","option2":null,"option3":null,"sku":"378BB-10BX10B","requires_shipping":true,"taxable":true,"featured_image":{"id":39789424443592,"product_id":8332349800648,"position":1,"created_at":"2026-07-23T14:28:46-06:00","updated_at":"2026-07-23T14:28:47-06:00","alt":"Colonial Bronze 378BB Round Back-to-Back Shower Door Knob Kit in Oil Rubbed Bronze","width":2000,"height":2000,"src":"\/\/banburylane.com\/cdn\/shop\/files\/Colonial-Bronze-Series-378_29-in-Oil-Rubbed-Bronze-10B.jpg?v=1784838527","variant_ids":[45148741861576]},"available":true,"name":"378BB Back-to-Back Shower Door Knob - Oil Rubbed Bronze","public_title":"Oil Rubbed Bronze","options":["Oil Rubbed Bronze"],"price":14063,"weight":141,"compare_at_price":14063,"inventory_management":null,"barcode":null,"featured_media":{"alt":"Colonial Bronze 378BB Round Back-to-Back Shower Door Knob Kit in Oil Rubbed Bronze","id":31014720143560,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/banburylane.com\/cdn\/shop\/files\/Colonial-Bronze-Series-378_29-in-Oil-Rubbed-Bronze-10B.jpg?v=1784838527"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":45148741894344,"title":"Matte Light Statuary Bronze","option1":"Matte Light Statuary Bronze","option2":null,"option3":null,"sku":"378BB-M20XM20","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"378BB Back-to-Back Shower Door Knob - Matte Light Statuary Bronze","public_title":"Matte Light Statuary Bronze","options":["Matte Light Statuary Bronze"],"price":14063,"weight":141,"compare_at_price":14063,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":45148741927112,"title":"Matte Satin Black","option1":"Matte Satin Black","option2":null,"option3":null,"sku":"378BB-M19XM19","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"378BB Back-to-Back Shower Door Knob - Matte Satin Black","public_title":"Matte Satin Black","options":["Matte Satin Black"],"price":14063,"weight":141,"compare_at_price":14063,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":45148741959880,"title":"Polished Chrome","option1":"Polished Chrome","option2":null,"option3":null,"sku":"378BB-26X26","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"378BB Back-to-Back Shower Door Knob - Polished Chrome","public_title":"Polished Chrome","options":["Polished Chrome"],"price":14063,"weight":141,"compare_at_price":14063,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":45148741992648,"title":"Matte Pewter","option1":"Matte Pewter","option2":null,"option3":null,"sku":"378BB-M15BXM15B","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"378BB Back-to-Back Shower Door Knob - Matte Pewter","public_title":"Matte Pewter","options":["Matte Pewter"],"price":14063,"weight":141,"compare_at_price":14063,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":45148742025416,"title":"Matte Graphite","option1":"Matte Graphite","option2":null,"option3":null,"sku":"378BB-MGRAXMGRA","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"378BB Back-to-Back Shower Door Knob - Matte Graphite","public_title":"Matte Graphite","options":["Matte Graphite"],"price":14063,"weight":141,"compare_at_price":14063,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]