Call us at 1(800)562-7797 or 1(206)784-9903 or use our Contact Form

Showroom Open 8:00am to 4:30pm M-F PST

CurrencyUS
En

0 items $0.00

Login
Account
Re Order
Quick Buy

Call us at 1(800)562-7797 or 1(206)784-9903 or use our Contact Form

Showroom Open 8:00am to 4:30pm M-F PST

Welcome
Shopping Cart
My Account
Heat
Cool
Galley
Hardware
Electrical
Info
Shop

Cool > Grilles and Ducting > Plastic Ducting Parts > Transition Box Ring Back >

Categories

	Heat
	Cool
		Webasto Marine Cooling
		Ventilation Equipment
		Pumps Valves and Strainers
		Micro-Air Accessories
		Grilles and Ducting
			Wood Supply Grilles
			Wood Return Air Grilles
			Wedge Style Supply Grilles
			Round Plastic Grilles
			REAL Ventilators & Plenum Boxes
			Plastic Grilles
			Plastic Ducting Parts
				Transition Box Ring Side
				Transition Box Ring End
				Transition Box Ring Back
				Oval Duct Hose Rings
				Hose Elbows
				Elliptical Duct Hose Rings
				Duct Hose Rings
				Duct Adapters
				Blank Plenum Boxes
				Air Divider Hose Y (Wye)
				Air Divider Hose (Tee)
				Air Divider Adapter Y (Wye)
				Air Divider Adapter T (Tee)
				Adapter Elbows
				AC Transition Boxes
				AC Blower Adapters
			Insulation Tape
			Insulated Supply Ducting
			Galvanized HVAC Ducting Parts
			CLEARANCE GRILLES
			Aluminum Supply Grilles
			Aluminum Return Air Grilles
		Dometic Air Conditioning
		CLEARANCE
	Galley
	Hardware
	Electrical
	Info
	Shop

Transition Box Ring Back

TB44-3B 4" x 4" ABS Plastic Transition Box with 3" Ring Back by MSI Show Quantity Pricing ~~Price : $39.42~~ Our Price : $35.48 Add to Compare	TB44-4B 4" x 4" ABS Plastic Transition Box with 4" Ring Back by MSI Show Quantity Pricing ~~Price : $39.42~~ Our Price : $35.48 Add to Compare	TB64-3B 6" x 4" ABS Plastic Transition Box with 3" Ring Back by MSI Show Quantity Pricing ~~Price : $43.45~~ Our Price : $39.10 Add to Compare
TB64-4B 6" x 4" ABS Plastic Transition Box with 4" Ring Back by MSI Show Quantity Pricing ~~Price : $43.45~~ Our Price : $39.10 Add to Compare	TB84-4B 8" x 4" ABS Plastic Transition Box with 4" Ring Back by MSI Show Quantity Pricing ~~Price : $43.45~~ Our Price : $39.10 Add to Compare	TB84-5B 8" x 4" ABS Plastic Transition Box with 5" Ring Back by MSI Show Quantity Pricing ~~Price : $43.45~~ Our Price : $39.10 Add to Compare
TB86-6B 8" x 6" ABS Plastic Transition Box with 6" Ring Back by MSI Show Quantity Pricing ~~Price : $57.13~~ Our Price : $51.42 Add to Compare	TB104-4B 10" x 4" ABS Plastic Transition Box with 4" Ring Back by MSI Show Quantity Pricing ~~Price : $57.13~~ Our Price : $51.42 Add to Compare	TB104-5B 10" x 4" ABS Plastic Transition Box with 5" Ring Back by MSI Show Quantity Pricing ~~Price : $57.13~~ Our Price : $51.42 Add to Compare
TB104-6B 10" x 4" ABS Plastic Transition Box with 6" Ring Back by MSI Show Quantity Pricing ~~Price : $57.13~~ Our Price : $51.42 Add to Compare	TB105-5B 10" x 5" ABS Plastic Transition Box with 5" Ring Back by MSI Show Quantity Pricing ~~Price : $57.13~~ Our Price : $51.42 Add to Compare	TB106-5B 10" x 6" ABS Plastic Transition Box with 5" Ring Back by MSI Show Quantity Pricing ~~Price : $57.13~~ Our Price : $51.42 Add to Compare
TB106-6B 10" x 6" ABS Plastic Transition Box with 6" Ring Back by MSI Show Quantity Pricing ~~Price : $57.13~~ Our Price : $51.42 Add to Compare	TB145-7B 14" x 5" ABS Plastic Transition Box with 7" Ring Back by MSI Show Quantity Pricing ~~Price : $61.13~~ Our Price : $55.02 Add to Compare

Compare Products

Information

About Us
Delivery Information
Privacy Policy
Terms & Conditions

My Account

Overview
Order History
Re-Order Items
Profile

Get In Touch

Call us to ask any questions
1(800) 562-7797 or 1(206) 784-9903
Send us an email Contact Us
5320 28th Avenue NW STE 100, Seattle, Wa 98107, USA

Social

Newsletter Sign Up

© 2026 Sure Marine Service Inc

Sure Marine Service, Inc.

5320 28th Ave NW

Seattle , WA , 98107

(206)784-9903