Water Tank Divider Kit - Durable PVC Construction Easy-Install Bulkhead Fitting & Faucet Alloy for Fish Tanks and Ponds Bulkhead Fitting :1/2inch Female thread seal gaskets is 4mm thick;please note locking nut is reversed threaded. How to Install: the PVC Bulkhead Fitting is drill 30mm/1.18inchhole to instal. Assemble the bulkhead and hose adapter together. Durable: will not crack, fade, or peel.The bulkhead fitting with a thick silicone seal gasket will creates a better tight seal. Package including: Same as the picture(choose the type you like) Widely Application: suitable for industrial and house using.It can be installed in rain buckets, water tanks, water trough, ponds or aquariums, very fast and easy way to empty your rain barrel. Package including: Same as the picture(choose the type you like)