Extremely durable 7" x 30" (16.8 litre volume) structural pressure vessel suitable for use with a resin filter media such as softening or deionisation resin. All our resin vessels can be supplied with hoselock type inlet and outlet fittings to join into 1/2" hose. Please note that these are empty vessels - see the Complete DI Resin Filters page for vessels complete with resin.