£64.94

TRUE BLUE True Blue 320361.4 Allergen 20-Inch by 36-Inch by 1-Inch Air Filter, 4-Pack

White, 320361.4

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 60 days • 60 data points (No recent data available)

Historical
Generating forecast...
£139.06 £57.53 £75.32 £93.11 £110.89 £128.68 £146.47 09 March 2026 23 March 2026 07 April 2026 22 April 2026 07 May 2026

Price Distribution

Price distribution over 60 days • 9 price levels

Days at Price
Current Price
21 days · current 1 day 2 days 3 days 1 day 8 days 8 days 12 days 4 days 0 5 11 16 21 £65 £66 £68 £123 £125 £127 £128 £133 £139 Days at Price

Price Analysis

Most common price: £65 (21 days, 35.0%)

Price range: £65 - £139

Price levels: 9 different prices over 60 days

Description

The True Blue Allergen air filter is specifically designed for families with allergies and pets. It is 53 times more effective than fiberglass filters and will last up to 4 months. During the manufacturing process, we charge the filter media with an electric current. This process allows the filter to attract very small particles much the same way magnets attract metal. The end result is a far more effective filter. The electrostatically charged filter media filters sub-micron airborne allergens like dust, dirt, pollen, pet dander, dust mite debris, microscopic allergens, smoke and smog. 100% Synthetic filter media will not support the growth of bacteria, mold, or fungi in normal use.

Key Features

20 x 36 x 1 Pleated air filter

Filters sub-micron airborne allergens like dust, dirt, pollen, pet dander, dust mite debris, microscopic allergens, smoke and smog

Performance allergen reduction filter

Lasts up to 120 days

Minimum efficiency reporting value or MERV rating is 11

Product Specifications

Colour
White
Size
20-inch By 36-inch By 1-inch
Pack Size
4 items
Domain
Amazon UK
Listed Since
02 December 2013

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