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100 mm Metal Sleeve. Odor Resistant is an in-line accessory for 100 mm ducts that houses a neutralizing block such as Ona Block or Zerum Block. It reduces residual odors from indoor cultivation and perfumes the airflow before it exits in indoor grow cabinets.

The 100 mm Metal Sleeve. Odor Control acts as the final deodorization stage in extraction systems. The metal body with a nominal diameter of 100 mm incorporates a central compartment to place an aromatic block (usually compatible with Ona Block and Zerum Block).
The airflow passes through the inside of the sleeve, becomes impregnated with the chosen scent, and minimizes odors that could escape outside.
This connector works in a complementary way to the carbon filter: the filter captures particles and compounds, while the sleeve provides an aromatic finish that stabilizes the system's discretion. Easy installation with standard clamps and flexible ducting; sturdy construction to integrate into compact lines where every centimeter counts.
The design, intended for quick maintenance, makes it easy to replace the aromatic block without complex tools.
It is useful in flowering rooms, drying areas, and technical spaces where odor control must remain stable throughout the cycle.
The solution is listed under cannabis cultivation accessories as an effective, economical, and low-consumption complement, ideal for those looking to reinforce neutralization without resorting to additional electrical equipment.
Designed for Indoor cultivation with forced extraction, the 100 mm format fits compact installations, small/medium-sized grow tents, and secondary branches. Recommended placement at the final section of the duct to deliver more neutral air outside, maintaining aromatic discretion in sensitive neighborhoods.
It is used to neutralize residual odors and scent the airflow before it exits. The block acts as an aromatic trap that reduces volatile compounds remaining after the carbon filter, providing an extra layer of control in indoor grow tents and ventilation rooms.
This sleeve belongs to the family of cannabis cultivation accessories dedicated to air treatment. Compatible with 100 mm clamps, flexible ducts, and metal elbows, it allows you to integrate Ona Block or Zerum Block without modifying the line. Perfect to complement extractors and filters commonly found in any Grow Shop in Spain catalog.
Especially recommended during flowering, in drying rooms, and during hot periods when terpene volatilization increases. Also useful in installations located in commercial basements or residential areas with nearby neighbors, where extraction discretion makes the difference.
1) Place the 100 mm Metal Sleeve. Odor Control at the final section of the duct, preferably after the carbon filter and before the external outlet.
2) Insert an Ona Block or equivalent (Zerum Block) inside; secure the block to prevent movement due to vibration.
3) Ensure airtightness with clamps; well-sealed joints increase effectiveness.
4) Adjust extractor airflow to ensure adequate contact time with the block.
5) Check the condition of the aromatic block periodically; replace when intensity decreases.
6) Keep the sleeve free of dust to maintain a stable and quiet flow.
7) Combine with a carbon filter sized to the airflow to create a double barrier against odor.
Available at Hydroponics Blanes, trusted Grow Shop with technical advice, real stock, and discreet shipping. A benchmark as a Grow Shop in Spain, with a catalog of filters, extractors, cannabis cultivation accessories, and ventilation solutions to optimize extraction in any Indoor cultivation project.
The 100 mm Metal Sleeve. Odor Control provides a practical and efficient solution to improve the discretion of the ventilation system. The combination of metal body, compartment for neutralizing block, and direct mounting on 100 mm makes this accessory a key ally to stabilize aromatic output, maintain more pleasant spaces, and reinforce odor control strategy in modern indoor grow tent installations.
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