Thomas Dudley Tri-Well Black Well Bottom Cistern uses a high-level flush cistern that is perfect for use in public restrooms that may be subjected to vandalism or misuse. Features Tri-Well plastic cistern tanks provide ready-made replacements for most rubber and cast iron well bottom cisterns, side inlets, plastic outlets, and nuts with internal or external overflow warnings. Internal parts comply with the regulator's specification. WRAS approved Dudley Turbo S1-11 2 part syphon as standard, which can be serviced in under 5 minutes without disconnecting the water supply and dismantling the cistern chain pull, suitable for high-level installations. The chain pull can be fitted on the left or right side.

• Well bottom design provides ready made replacement for most rubber and cast iron well bottom cisterns
• Vandal resistant features include cistern body manufactured using a unique sandwich foam moulding process providing unsurpassed strength and durability
• Lid secured by metal screws and with supplied with a strong metal lever or chain pull
• Side inlet
• Internal and external overflow warning
• With water saving 6, 7 or 9 litre flush
• Supplied with a WRAS approved Dudley Turbo S1-11 2 part syphon
• Syphon can be serviced in under 5 minutes without disconnecting the water supply and dismantling the cistern
• Suitable for high level installations
• Fitted with a 13 mm float valve