Make your GHL doser like new by replacing the roller assembly and head. Each replacement head includes the housing, rollers, and novoprene tubing. Just transfer the nozzles and install the new head, to keep your dosing rolling smooth and accurate.
We've sent you an email with a link to update your password.
Reset Password
We will send you an email to reset your password.
Create Account
We prefer for you to shop locally.
Many Reef Synergy products are available through independent aquarium
retailers around New Zealand. Before completing your order, you may
like to check whether there is a stockist near you.
Shopping from the South Island?
Aqua House is our recommended South Island retailer and carries a
range of Reef Synergy products.