3 Pack 115115 Size 21 Replacement Filter A For Winix C535, Winix Plasmawave 5300, 6300, 5300-2, 6300-2,p300 Air Purifier - Air Purifier Parts - AliExpress
Hepa Filter for Winix 115115 Replacement Filter A for C535, 5300-2, 6300-2, P300, 5300 and 5500 (1 Set) - Walmart.com
Replacement filter suitable for air purifier WINIX ZERO and P300. Set
Amazon.com: 115115 Replacement Filter A for Winix C535,5300-2,6300-2,C909 AM90,P300,5300,6300 Plasma wave. 2 True HEPA Filter Size 21 + 8 Carbon Pre- filters : Home & Kitchen
Amazon.com: Genuine Winix 115115 Replacement Filter A for C535, 5300-2, P300, 5300, White/Black : Home & Kitchen
nispira true hepa replacement filter b compatible with winix air purifier model 9500 u300 p300 wac9000 wac9500 wac5000 wac5000b wac5300 wac6300 wac5500. compared to part 114190 1 set - Newegg.com