



SALE PROHIBITED TO PERSONS UNDER 18 - FREE SHIPPING FROM €40 (Mainland Spain only - Max. 25 Kg)
355 mm plastic crown sleeve is an economical and functional accessory designed for connecting ventilation pipes in Indoor cultivation systems. It allows large diameter ducts to be attached to extraction boxes or walls, ensuring a secure seal and preventing air leaks.

The Plastic crown sleeve 355 mm is widely used in ventilation projects for indoor crops, both in cheap indoor grow tents and in large grow rooms.
Its main function is to connect 355 mm ducts with extraction boxes or outlets to the outside, ensuring that the ventilation system works efficiently.
In installations where the outlet is made in a wall, this accessory is easily screwed in and the duct is secured with a metal clamp or tape, achieving a stable coupling.
Made of plastic, it is more affordable than metal models, but offers enough strength to tighten the ducts well and prevent air leaks.
It is one of the most in-demand cannabis cultivation accessories in any Grow Shop in Spain, as it combines economy and practicality in ventilation systems for Indoor cultivation.
In an Indoor cultivation, ventilation control is essential to maintain proper temperature and humidity conditions. The Plastic crown sleeve 355 mm ensures the correct connection between ducts and extraction boxes, guaranteeing that the air circulates efficiently and without losses in the system.
The Plastic crown sleeve 355 mm is used to attach 355 mm air ducts to extraction boxes or wall outlets. Its function is to maintain a tight seal that prevents air leaks and improves the performance of the ventilation system. It is an indispensable accessory in high-capacity installations.
Among the cannabis cultivation accessories, the Plastic crown sleeve 355 mm stands out for its usefulness and low cost. It is perfect for cheap indoor grow tents and larger rooms where large diameter ducts are used. Its simple installation and lightness make it a practical piece for any Grow Shop in Spain specialized in ventilation for Indoor cultivation.
The Plastic crown sleeve 355 mm is mainly used to connect 355 mm air ducts to extraction boxes or outlets to the outside. It is also ideal in installations where the boxes do not include factory crowns, providing an economical and safe solution to complete the ventilation installation.
The assembly of the Plastic crown sleeve 355 mm is quick and easy. The surface where it will be installed, whether an extraction box or a wall, is drilled. Then the accessory is screwed in and the duct is inserted into the crown. Finally, it is secured with metal clamps or tape to obtain a stable and leak-free seal.
The main advantages of the Plastic crown sleeve 355 mm are:
The Plastic crown sleeve 355 mm is available at Hydroponics Blanes, a trusted Grow Shop specialized in Indoor cultivation. This online store offers a wide selection of cannabis cultivation accessories, extractors, ducts, and cheap indoor grow tents. With discreet shipping and delivery in 24/48 hours throughout Spain, Hydroponics Blanes is the best option to buy this accessory with all the guarantees of a Grow Shop in Spain.
The Plastic crown sleeve 355 mm is an economical, functional, and easy-to-install accessory, ideal for maintaining efficiency in high-capacity ventilation systems. Available at Hydroponics Blanes with discreet shipping, it represents a practical solution to improve any Indoor cultivation installation with the security of a trusted Grow Shop.
Customers who bought this product also bought: