Best Natural Ventilation Systems

Greenhouse Roll Up Motor TBVECHI 24V 100W Motor Electric Greenhouse Frame Shed Roll-up Motor Automatic Venting Solution

  • ...ll-up Motor】24V 100W Electric Greenhouse Frame Shed Roll-up Motor Automatic Venting Solution.The gear is the most critical part of the film winder. Our film winder uses high-quality gears with special heat treatment, which has high stability and greatly improves the operating efficiency, fit for most of your film ventilation roll up work..
  • ☑【Motor Description】Greenhouse electric film roller, adopts pure copper motor and aluminum alloy body, not easy to corrode, rust, and has a long service life. Excellent reliabilty Ideal for greenhouse ventilation, light deprivation and blackout systems..
  • ☑【Features】Greenhouse curtain motor Roll-up Unit for up to 100 feet long. Setting the limit switches on hoophouse roll up ventilation motors, electricl roll up winch. Low noise, easy to install, very labor-saving operation, improve work efficiency greatly..
  • ☑【Motor Useful】Electric film roll up motor is widely used in greenhouse, such as solar greenhouse, vegetable greenhouse, breeding greenhouses, flower greenhouses, connecting film greenhouses, fruit greenhouses, cultivation greenhouse, multi-transmembrane greenhouse and other assembled greenhouse..
  • ☑【Guaranteed】This item will ship from USA, delivery time need about 5-8 days. If there is any ....
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Digital Handheld Manometer HVAC Air Vacuum/ Gas Differential Pressure Gauge Meter Tester 11 Units with Backlight, ±13.78kPa ±2PSI, 1-2 Pipes Ventilation Air Condition System Measurement

  • Measures air pressure of the single pipe or differential pressure of 2 pipes. Has 11 selectable units of measurement kPa, psi, kgfcm2, ozin2, bar, mbar, inHg, mmHg, inH2O, ftH2O, cmH2O..
  • Best for measuring the ventilation and air condition systems. Widely used for gas measurement, calibration, and any troubleshooting of any gas pressure systems..
  • Max / minimum / Average reading record function.
  • Low battery display and Auto power off set up function.
  • Differential pressure measurement,Large LCD backlit dual display.
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Manometer Digital Gas Pressure Tester Differential Pressure Gauge HVAC Air Pressure Meter with Backlight Data Record Function

  • ✅【High Accuracy】Measurement range: ±2.000psi.
  • ✅【12 Selectable Units】Easily toggle between Psi, kPa, Pa, Kgfcm2, ozin2, Bar, mbar, inHg, mmHg, inH2O, ftH2O and cmH2O.
  • ✅【Data Record】This Manometer would be record 99pcs data with time stamp, which help to easier to analyze the data.
  • ✅【Multi-Functional】Measuring Differential pressure, Positive and Negative Pressure, Data Hold, MAX/MIN/Average, Large LCD backlight, Low battery Alarm, Auto Power Off Functions.
  • ✅【Wide Applications】This high-quality manometer is suitable for gas measurement systems, which measuring the air and ventilation system, calibrating and trouble shooting of gas pressure systems, HVAC, gas appliance repair and installation, laboratory testing, etc..
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Cenipar Louvered Vent Cover(6 inch) for External Wall Vent Hood Air Outlet with 4 Screws for Easy Installation(Plastic,White)

  • ... plastic and nylon shroud for long service life. Plastics contain UV stabilizers that reduce fading and cracking from exposure to sunlight. Cenipar outdoor dryer vent covers are designed for maximum exhaust air flow when the dryer is re-operating..
  • ☻【MULTIPLE USES】: The outdoor dryer vent cover is suitable for ventilation ducts, bathroom vents and fume extraction equipment, air conditioners, kitchen fans and vents, all home wall vents, heat transfer and ventilation systems, range hoods, range hoods and some industrial uses. The outdoor dryer vent cover automatically and silently opens and closes the flaps as air flows through the vents, preventing wind, snow, rain, birds or others from entering the house..
  • ☻【EASY TO INSTALL】: You can easily install without professional tools or assistance. Simply insert the nozzle into the ventilation duct. The exterior vent cover is then fastened to the wall using the four stainless steel screws provided. For dryer and tub fan ventilation..
  • ☻【PLEASE NOTE】: Cenipar Louvered Vent Cover is made of high quality material and manufactured according to strict high requirements. Our company is committed to providing you with high-quality products, so that you can buy with confidence and use with confidence. I....
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Hon&Guan 5 inch Air Duct - 16 FT Long, Black Flexible Ducting HVAC Ventilation Air Hose for Grow Tents, Dryer Rooms,Kitchen

  • LOW NOISE SILENCER: designed for reducing noise from fans and carbon filter systems, can decrease the noise by up to 50%..
  • 5" DUCTING LIGHTPROOF: Thick layer of Black PVC on Hon&Guan ducting prevents light leaks. Works with exhaust and intake fans, carbon filters and hooded lights which are 5" in diameter.
  • 3-LAYER TOUGH: Keep your ventilation system free of rips and pin holes. Under the Black PVC layer our ducting is built with 2 layers of Aluminum Foil With a layer of PET and Steel Wire Helix to preserve the shape,keep your ventilation system free of rips and pin holes.
  • FLEXIBLE AND EASY TO USE: Hon&Guan 5 Inch Duct is super flexible and easy to install, it will slide right on your Duct Fan, Vent Exhaust, Carbon Filter or Light Reflector.This Ventilation Duct is 5 Inches in diameter and comes in one 16 Feet Long Piece, which can be cut into as many pieces as you need using a wire cutter and a paper knife.
  • VARIETY OF APPLICATIONS: Hon&Guan Ducting Is suitable for HVAC system. It will move and deliver air in Kitchens (cooking exhaust), Green Houses and Grow Rooms (Air Circulation, Intake, Exhaust and Light Fixture Cooling), Bathrooms (Smell and Moisture Exhaust), Dryer Rooms, Grow Tents and other applications etc..
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Hon&Guan 6 inch Air Duct - 16 FT Long, Black Flexible Ducting HVAC Ventilation Air Hose for Grow Tents, Dryer Rooms,Kitchen

  • LOW NOISE SILENCER: designed for reducing noise from fans and carbon filter systems, can decrease the noise by up to 50%..
  • 6" DUCTING LIGHTPROOF: Thick layer of Black PVC on Hon&Guan ducting prevents light leaks. Works with exhaust and intake fans, carbon filters and hooded lights which are 6" in diameter.
  • 3-LAYER TOUGH: Keep your ventilation system free of rips and pin holes. Under the Black PVC layer our ducting is built with 2 layers of Aluminum Foil With a layer of PET and Steel Wire Helix to preserve the shape,keep your ventilation system free of rips and pin holes.
  • FLEXIBLE AND EASY TO USE: Hon&Guan 6 Inch Duct is super flexible and easy to install, it will slide right on your Duct Fan, Vent Exhaust, Carbon Filter or Light Reflector.This Ventilation Duct is 6 Inches in diameter and comes in one 16 Feet Long Piece, which can be cut into as many pieces as you need using a wire cutter and a paper knife.
  • VARIETY OF APPLICATIONS: Hon&Guan Ducting Is suitable for HVAC system. It will move and deliver air in Kitchens (cooking exhaust), Green Houses and Grow Rooms (Air Circulation, Intake, Exhaust and Light Fixture Cooling), Bathrooms (Smell and Moisture Exhaust), Dryer Rooms, Grow Tents and other applications etc..
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QIANS Digital Manometer, Professional Air Pressure Meter with High Precision, Wide Range and High Resolution Used in Natural Gas Pipelines, Air Conditioning and Multiple Detection

  • 【Good design】The instrument is designed with imported pressure sensors, high precision ADC and low power consumption MCU.
  • 【Practical】It features professional digital pressure gauge with high precision, wide range, high resolution, large screen display and indoor temperature measurement.
  • 【Dual Tube Connectors】With a single channel it is possible to quickly measure the current detection pressure value (relative to the current atmospheric pressure), whereas the dual channel allows simultaneous detection of the pressure difference between the two detection ports, comes with Positive & Negative pressure tube connectors..
  • 【High Accuracy & Resolution】The digital manometer can measure ± 2.999Psi/ (0.001 resolution) with accuracy ±0.3% in full scale..
  • 【Wide Applications】This product can be extensively used in natural gas pipelines, air conditioning and refrigeration ventilation systems, mechanical hydraulics, plastic molding, ceramic products manufacturing, biopharmaceutical molding, mining pressure testing, petrochemical Industrial smelting, gas, liquid and production industrial equipment pressure detection, liquid level detection, Laboratory calibration, medical environment micro-pressure testing, etc..
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Funmit 4'' Metal Dryer Vent Cover with Metal Mesh Screen, 7\x7\ Outdoor Stainless Steel Louvered Vent Cover Includes 4 Screw for Easy Installation

  • ...ICATIONS】- Package includes 1 x 4" diameter stainless steel louvered outdoor dryer vent cover and 4 x installation screw. The external installation size --- L: 7.1" x W: 7.1" inch (Note:To facilitate insertion of the vent cover into the exhaust duct, its port size will be slightly less than 4''. Find the matching ventilation equipment in Funmit to build the perfect ventilation system!).
  • ✅【HIGH QUALITY MATERIALS】- Our exterior wall vent hood is made of 304 stainless steel material well-tested by the manufacturer, provide rust and corrosion resistance in any weather conditions. The self-closing shutter flaps will protect your equipment Safe from annoying rodents like mice, rats, birds, snake and squirrels. In addition you can disassemble the wire mesh for optimal ventilation efficiency.
  • ✅【WIDE APPLICATION】- The louvered vent cover is ideal for 4" vent hose, which allows for maximum exhaust airflow when venting. And perfect for bathroom vents, air conditioning units, kitchen fans & extractors, heat transfer and ventilation systems, gas & electric dryers, cooker hood extractors and all home wall vents, as well as a wide variety of industrial uses.
  • ✅【EASY TO INSTALL】- In order to make the installation easier, we have equipped each vent ....
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Smith Optics Unisex Adult Sequel Snow Sports Helmet - Matte White Large 59-63CM

  • AirEvac 2 Ventilation and Adjustable Smith x Boa Fit System.
  • Low-Profile Regulator Adjustable Climate Control and 18 Vents.
  • Nanosilver Performance Lining, Snapfit SL Ear Pads and a Removable Ultra-Light Goggle Lock.
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Smith Optics Unisex Adult Sequel Snow Sports Helmet - Matte Black Small 51-55CM

  • AirEvac 2 Ventilation and Adjustable Smith x Boa Fit System.
  • Low-Profile Regulator Adjustable Climate Control and 18 Vents.
  • Nanosilver Performance Lining, Snapfit SL Ear Pads and a Removable Ultra-Light Goggle Lock.
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