Are the prefilters actually washable?

No they are not washable because they have charcoal in them as they are charcoal filters to knock down the smell.

Weight of the activated carbon contents in the product?

If it's not labeled in the ad then it's impossible to tell without damaging the filter since it's tac welded closed.

Can i wash it? theres replacements so i can keep using the one i bought first?

I'm sure you can wash the pre filter. As far as the canister I'm not sure I don't think so. You can find a better filter that will last longer. Imo this one is not worth the money!

would this work to vent a small resin printer?

If your small resin printer has a 4" exhaust that needs fumes or smells scrubbed by charcoal then probably yes. These were designed for growing plants with pungent odors.

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🖤 Breathe cleaner, grow stronger — the carbon filter that means business.

POWERFUL 210 CFM AIRFLOW - Maximize fresh air circulation with industry-leading ventilation efficiency.
DUAL HIGH QUALITY PRE FILTERS - Protect your filter and extend lifespan by blocking 99% of particles before they reach the core.
LIGHTWEIGHT YET DURABLE DESIGN - 1.6mm aluminum tops and bases reduce weight by half without compromising strength.
PREMIUM AUSTRALIAN VIRGIN CARBON - Experience superior odor absorption with 1200+ IAV activated charcoal from Western Australia.
COMPLETE INSTALLATION KIT INCLUDED - Hassle-free setup with heavy-duty stainless steel flanges and a pair of sturdy rope hangers.

The Vanleno 4-inch Carbon Filter features a robust 210 CFM airflow capacity and is packed with 1200+ IAV Australian virgin activated carbon for exceptional odor control. Its dual washable pre-filters block 99% of particles, ensuring long-lasting performance. Lightweight aluminum construction and included heavy-duty rope hangers make installation effortless, ideal for grow tents, hydroponics, and indoor air purification.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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