16x20x1 Air Filters

Browse 13 16x20x1 air filters at Findsworth, from brands including Filtrete, BNX, Aerostar. Prices currently range from £69.47 to £137.40. Not sure what to choose? Read our guide to HVAC and air conditioning filters. See the full HVAC filters & accessories range, and always check your unit's filter size and...

Browse 13 16x20x1 air filters at Findsworth, from brands including Filtrete, BNX, Aerostar. Prices currently range from £69.47 to £137.40. Not sure what to choose? Read our guide to HVAC and air conditioning filters. See the full HVAC filters & accessories range, and always check your unit's filter size and rating before ordering.

Every order ships free across the UK with free 30-day returns. Looking for something else? Browse all categories or all brands.

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MAC Energy front can view showing orange creamsicle branding and appealMAC Energy label close-up showing formulation details and ingredient benefits
MAC Energy
MAC Energy Orange Creamsicle Sugar-Free Energy Drink — 200 mg Caffeine, 2,000 mg goBHB
MAC Energy Orange Creamsicle is a zero-sugar, ketone-fueled energy drink that pairs 200 mg of caffeine with 2,000 mg goBHB for clean, calorie-light energy and a nostalgic orange creamsicle flavor. Designed by the MAC Energy brand with input from Conor McGregor, this 12 oz...
£82.80
£82.80
Ferrara Wonka packaging front view showing bold red spheres and convenienceFerrara Wonka single wrapped Atomic Fireball highlighting easy sharing
Ferrara
Ferrara Wonka Atomic Fireball Cinnamon Hard Candy — 240-Count Individually Wrapped, Intense Spice
Ferrara Wonka Atomic Fireball are individually wrapped cinnamon hard candies that deliver a bold, spicy-sweet kick in every fiery red sphere. These Atomic Fireball candies (7.5 g each, 240 count / 64.8 oz) pack a concentrated cinnamon flavor designed to hit immediately and mellow...
£80.67
£80.67
FreAire VisionAir front view showing clean-lined design and digital display benefitsFreAire VisionAir top display with PM2.5 and AQI readout for instant awareness
FreAire
FreAire VisionAir HAP606 HEPA Air Purifier for Large Rooms up to 1800 ft² — 360° Intake, Real-Time PM2.5 Display
FreAire VisionAir HAP606 is a high-capacity HEPA air purifier engineered to clean air in large rooms up to 1800 ft² with real-time PM2.5/AQI feedback and whisper-quiet 20 dB sleep mode. If you need continuous, measurable air cleaning across an open-plan living area, large bedroom,...
£261.35
£261.35

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  • Filtrete front packaging showing MPR 1900 and 2-pack benefitFiltrete pleated fiber close-up showing efficient particle capture
    Filtrete
    Filtrete 16x20x1 MERV 13 Air Filter 2-Pack (MPR 1900) — Pleated 1" Filters for Allergens & Bacteria, 90-Day Life
    Filtrete 16x20x1 MERV 13 (MPR 1900) air filters are pleated 1" HVAC filters sold as a two-pack that capture allergens, bacteria-carrying particles, and many microparticles while preserving strong airflow for residential furnaces and AC systems. These Filtrete filters by 3M combine a high MPR...
    £82.80
    £82.80
  • Aerostar 6-pack front packaging showing filters and brand improving air qualityAerostar pleated media close-up showing fibers and efficient particle capture
    Aerostar
    Aerostar 16x20x1 Air Filter MERV 8 — 6-Pack Pleated HVAC/Furnace Filters, Electrostatic Media
    Aerostar 16x20x1 MERV 8 pleated air filter 6-pack provides reliable particle capture and steady airflow for standard residential HVAC and furnace systems. These Aerostar pleated filters are engineered to balance effective particle removal with minimal airflow restriction so your heating and cooling system can...
    £92.46
    £92.46
  • Aerostar front packaging 16x20x1 showing four-pack and benefitsAerostar pleat close-up showing electrostatic fibers capturing particles
    Aerostar
    Aerostar 16x20x1 MERV 11 Pleated HVAC Air Filters — 4-Pack, Electrostatic Media for Dust & Smoke Capture
    Aerostar 16x20x1 MERV 11 pleated air filters (4-pack) are high-efficiency HVAC filters that capture fine particles like dust, pollen, pet dander and smoke while fitting most 16x20x1 slots. If you want better indoor air without upgrading your whole system, these Aerostar pleated filters offer...
    £84.86
    £84.86
  • TRIGHTFILTERS front packaging showing 4-pack and clear fit details, helps quick identificationTRIGHTFILTERS pleated media close-up highlighting dense folds for increased filtration surface
    TRIGHTFILTERS
    TRIGHTFILTERS 16x20x1 Air Filter 4-Pack MERV 8 Pleated HVAC Furnace Filters — Lightweight, Durable
    TRIGHTFILTERS 16x20x1 air filters are a 4-pack of MERV 8 pleated replacements designed to improve airflow and trap small particles for everyday home HVAC systems. These compact, lightweight filters fit standard 16 x 20 x 1-inch housings and are built from thickened white cardboard...
    £81.47
    £81.47
  • Filtrete frontal del empaque mostrando el filtro y beneficios de capturaFiltrete detalle de los pliegues y fibras electrostáticas para mejor retención
    Filtrete
    Filtrete 16x20x1 Air Filter MERV 5 (MPR 300) 6-Pack — Pleated Electrostatic for Dust & Lint
    The Filtrete 16x20x1 MPR 300 (MERV 5) 6-pack is a pleated electrostatic furnace and air-conditioning filter designed to capture lint, household dust and larger airborne particles while maintaining airflow for standard HVAC systems. Engineered by 3M, Filtrete’s MPR 300 filter combines pleated media with...
    £86.76
    £86.76
  • Filtrete frontal del empaque mostrando el tamaño y beneficios de filtraciónFiltrete detalle de los pliegues que aumenta área de filtrado y eficiencia
    Filtrete
    Filtrete 16x20x1 MERV 11 Air Filter 2-Pack (MPR 1000) — 3-Month Pleated Filters for Allergens & Pet Dander
    Filtrete 16x20x1 MERV 11 (MPR 1000) air filters are pleated HVAC filters designed to trap a wide range of household particles while maintaining reliable airflow for furnaces and air conditioners. This two-pack of Filtrete 16x20x1 filters (actual size 15.68 x 19.68 x 0.81 in)...
    £69.47
    £69.47
  • Simply front packaging showing six air filters and brand clarity for easy buyingSimply pleat closeup revealing dense pleat count for improved particle capture
    Simply
    Simply 16x20x1 MERV 8 Air Filters, 6-Pack — Pleated HVAC Replacement Filters, Up to 3-Month Life
    Simply 16" x 20" x 1" MERV 8 air filter 6-pack is a pleated HVAC filter designed to capture common airborne particles like dust, pet dander, lint, and pollen while fitting most residential and light-commercial systems. These six pleated filters (actual size 15.75" x...
    £101.43
    £101.43
  • BNX filtro TruFilter frente del empaque mostrando el pack de seis y beneficio limpiezaBNX filtro TruFilter detalle de pliegues y textura electrostática mejora captación
    BNX
    BNX 16x20x1 Air Filter MERV 11 — 6-Pack Electrostatic Pleated HVAC Filters Made in USA
    BNX TruFilter 16x20x1 MERV 11 (6-pack) is a high-efficiency electrostatically charged pleated HVAC filter designed to reduce airborne particles while maintaining low airflow resistance. If you want a replacement air filter that balances strong particle capture with efficient airflow for your home furnace, air...
    £92.93
    £92.93
  • BNX filtro TruFilter frontal del paquete mostrando seis unidades y almacenamientoBNX TruFilter detalle del marco de cartón reciclado con instalación sencilla
    BNX
    BNX TruFilter 16x20x1 Air Filter MERV 8 (6-Pack) — Electrostatic Pleated Filters for Dust & Pet Dander
    BNX TruFilter 16x20x1 MERV 8 is a six-pack of electrostatically charged pleated HVAC filters designed to improve indoor air quality while maintaining low airflow resistance. This six-pack from BNX offers 16x20x1 replacement filters engineered for furnaces, air conditioners, and HVAC systems that accept this...
    £95.35
    £95.35
  • BNX TruFilter vista frontal del paquete muestra el tamaño y cantidadBNX TruFilter detalle de los medios filtrantes mostrando estructura electrostática
    BNX
    BNX MERV 13 Air Filter 16x20x1 — 6 Pack, Electrostatic Media, Made in USA
    BNX TruFilter 16x20x1 is a MERV 13-rated HVAC air filter designed to trap microscopic particles like pollen, smoke, pet dander, and many airborne contaminants while preserving strong airflow. This six-pack of BNX TruFilter furnace and air conditioner filters fits systems that accept a 16x20x1...
    £120.38
    £120.38
  • Colorfil filtro frontal en paquete de dos mostrando marca y tamaño, mejora aire interiorDetalle del medio filtrante Colorfil mostrando textura y capas para capturar polvo
    Colorfil
    Colorfil 16x20x1 Air Filter 2-Pack — MERV 8 Pet Odour Reduction, Colour-changing Indicator (Pink→Yellow)
    Colorfil 16x20x1 air filters are color-changing HVAC filters made in the USA that reduce pet odors, catch pet hair and dust, and indicate when they need replacing. If you share your home with cats, dogs or other furry friends, ordinary filters can miss the...
    £84.13
    £84.13
  • Filtrete front packaging 4-pack showing product and benefitsFiltrete close-up of pleated surface highlighting increased capture
    Filtrete
    Filtrete 16x20x1 Furnace & AC Air Filter, 4-Pack MPR 700 (MERV 8) — 1-inch Pleated Electrostatic, 3-Month
    Filtrete 16x20x1 MPR 700 is a 1-inch electrostatic pleated furnace and AC air filter sold as a 4-pack, rated MPR 700 (equivalent to MERV 8) and designed for three-month use to capture lint, pollen, dust and pet dander while maintaining good airflow. If you...
    £100.88
    £100.88
  • Filtrete front packaging showing 16x20x1 MERV 11 six-pack and clear product benefitsFiltrete pleated media close-up highlighting fiber density for better particle capture
    Filtrete
    Filtrete 16x20x1 Air Filters MERV 11 (MPR 1000) – 6-Pack Pleated HVAC Filters, 90-Day Life
    Filtrete 16x20x1 MERV 11 (MPR 1000) HVAC air filters — a six-pack of pleated 1-inch filters engineered to trap household dust, pet dander, smoke and many smaller airborne particles while maintaining airflow for heating and cooling systems. These Filtrete filters, made by 3M, combine...
    £137.40
    £137.40

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