Aventa Pro VPB125-2 plenum 2 port 75mm with seals.
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8-inch Subwoofer Empty Box,DIY Car/Home Woofr Box,Bass -speaker Case,1Piece Subwoofer Box,Wooden Sound Box,Subwoofer Housing
Aliexpress UK
Aventa Pro VPB125-3 plenum 3 port 75mm with seals. The Ø75 mm connection sleeves are equipped with seals and a special locking system for connected ducts, ensuring overall system airtightness to high Class D standards.
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HT IP65 2/3/5/8/12/15/18/24 way Distribution Box Waterproof MCB Box Panel Installation Distribution Box Waterproof Junction Box
Aliexpress UK
ROVER V8 EFI PLENUM CHAMBER BOLTS AND FLAT AND SPRING WASHERS. Stainless Intake Plenum Bolts Kit. 3.5, 3.9, 4.0 pre 93 single plenum only. (but NOT TWIN PLENUM OR 4.6 GEMS or thor ,see my other kits for those).
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Sub Box Single Cab Sub Box 8 Inch Car Subwoofer Enclosure Car Speaker Supply Sub Box Replacement DIY Universal Enclosures Boxes
Aliexpress UK
This plastic grill box, made by CVE, is an ideal addition to your HVAC system. Designed to enhance the performance of your system, this grill box is both durable and easy to install. Its sturdy construction ensures maximum efficiency and its black colour adds a touch of elegance to your setup.
eBay
10/12 inch Subwoofer Empty Box,DIY Car/Home Woofer Housing,1Piece Subwoofer Box, Passive Wooden Sound Box,Bass Speaker Box
Aliexpress UK
UB19 Slate Vent (NS - 600x300mm) - Anthracite (needs Adaptor). Domus Blue 75mm semi-rigid duct. You might also like. PICK UP OPTION.
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Wiring Back Box Socket Installation Box 86MM*86MM*50MM Wall Mounted Junction Box Electrical Adjustable Box Plastic Concealed
Aliexpress UK
ROVER V8 TWIN PLENUM ONLY BOLTS AND FLAT AND SPRING WASHERS. Stainless Intake TWIN Plenum Bolts Kit. TOP OF TWIN PLENUM only {NOT STANDARD SINGLE}. 4 SHORT {pic is for illustration only does not show twin kit}.
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4-inch Woofer 3-inch Tweeter Two-way Empty Speaker Box,Wooden Maze Speaker Box ,2Piece Passive Sound Box,Audio Box Body Housing
Aliexpress UK
NEW IN OPEN BOX Premier Mounts GB-Plen1 Gear Box Enclosure for Plenum For safely housing electronic gear above a drop ceiling in the ventilation duct area. One of the largest plenum boxes on the market.
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10-5pcs New CPU box, protective box, plastic box, pin packaging box 938 940 AM1 AM2 AM3 AM4 AM5 FM1，2，FM2+
Aliexpress UK
This dual filter plenum box is constructed from galvanized steel, ensuring durability. It can be customized to have either a lined or unlined interior, and always requires specification for the R value.
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30 Second Doll Voice Box Plush Toys Voice Recorder Box Recorder Core Box Stuffed Bear Doll Speaker Sound Box Doll Accessories
Aliexpress UK