Best Insulated Ducts

4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Vent Deflector (4 in)

【Material】The 4 inch backdraft damper is made out of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel..
【Installation】The backdraft damper is installed by pushing it into the ventilation pipe as far as it will go. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. This also applies to the vertical installation..
【Function】This airflow regulating backdraft shutter fits over the TD lip and is designed to improve ventilation by preventing air from re-circulating when the fans are not in use..
【Wide Application】 These backdraft dampers can be widely used in ACs, exhaust fans, extractors, range hoods, heating ducts, vents and other residential, commercial and industrial applications..
【Note】Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ducts as the sizes are different..

➜ Insulation sealing tape Size: 2in, 20M, high-strength foil-scrim-kraft paper laminate backing resists tearing..
➜ Fiber-Glass Composites cloth Foil Tape is waterproof, heat and high temperature resistant, rust proof, electronic jamming, for repairing, perfect shielding and anti-interference, with many applications..
➜ Perfect for sealing air ducts, designed to easily for Pipe Sealing, HVAC, Metal Repair, Patching Hot Cold Air Ducts, Heat Insulation..
➜ Self-Adhesive Heat Reflective Tape is waterproof, heat and high temperature resistant, rust proof, electronic jamming, for Pipe Sealing, HVAC, Metal Repair, Patching Hot Cold Air Ducts, Heat Insulation Wrap Exhaust Shield Thermal Barrier tape and so on..
➜ This tape roll provides a durable bond at low and high temperatures. Conformable backing and pressure sensitive adhesive means it will adhere properly to a variety of smooth and irregular surfaces..

Complete line set cover for ductless mini split A/C and heat pump units can be configured in any way required for your setup. Professional grade, durable PVC frame protects your system from sun exposure providing a longer life for your ductless system..
Perfect for systems of 9,000 or 12,000 BTU as well as most 18,000 BTU and many higher BTUsystems. 4 straight ducts provide flexibility of 15 ft of coverage to suit your needs..
Durable finished PVC protects lines and wiring from extreme temperature or weather conditions. Attractive white, premium PVC can be painted in the color of your choosing for the decorative look that is right for you..
Easy installation for any existing or new setup. Includes four straight ducts of 39.37" each that can be arranged or cut to fit your needs..
Kit includes: Four (4) 39.37" Straight PVC Ducts, Three (3) Duct Connectors, One (1) Wall Corner, One (1) 90° Corner, One (1) End Cap, One 1() Flexible Joint..

Designed to fit 4" diameter hose or ducts.
Direct air flow to exactly where you need it and maximize dust extraction by opening and closing select ducts.
Open slot at back to for self-cleaning, no-clog operation.
Cast aluminum, steel sliding gate, locking knob.

The best option to connect two straight ducts.
Easy to use. Simply slide in the two ducts and fasten with hose clamps or reinforced aluminum ducting tape.
Diameter is 5.9'' Inches to fit a 6'' duct. Length is 4'' Inches..
Increased durability with protrusion in the middle to withstand more pressure and to have a safer connection.
Each product goes through strict quality control and is well tested to ensure customer satisfaction and to serve for many years to come. MANUFACTURED IN EU.

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POWERFUL DUAL-FAN DESIGN for efficient airflow on head, neck or face.
LOW PROFILE STYLE conforms to shell to minimize bumps and snags.
6-HOUR RUNTIME via efficient Modular Rechargeable Battery Cat. No. 29025 (included).
MODULAR DESIGN offers 16 ways to cool face, neck or under shell with long ducts or short ducts (included).

4" inch, 90 Degree ducting saddle for plastic or metal 4 inch duct..
Saddle extention has air tight rubber gasket..
Assembly - cut 4" inch hole in existing duct. You can install the saddle with clamps or reinforced alu tape. For good air-seal use caulking around the hole before inserting the duct saddle. re-caulk after the saddle has been installed.
This will provide a good solution if you have no possibility to move the existing ducts. If you can remove the ducts, and reinstall with a T shape coupler, visit REPA MARKET. We offer various solutions for most ducting connections..
Made from high quality galvanized steal..

Efficient: The testo 605i is ideal for measurements in rooms, ducts, crawl spaces, registers and environmental boxes/chambers due to the compact probe head bendable to 90°.
Smart: Enabling live data feed integration and automatic calculations which are conveniently displayed on your terminal device, the instrument is ideal for all HVAC/R technicians.
Versatile: The testo 605i thermo-hygrometer measures relative air humidity and temperature in rooms and ducts and calculates dew point and wet bulb temperature automatically.
Easy to use: The digital combometer allows accurate remote monitoring and is operated via mobile device. Supplied calibrated and with 3 AAA batteries for instant use.
App for Android and iOS: The free testo Smart Probes App is a powerful tool that allows you to read and log measurements and create custom reports which can be saved and shared.