Hi Tim, could you PM me a quote for a system 3 aircon to be installed in a 3 room HDB? I think I would need 2x9,000BTU (bedroom) and 12,000BTU (living room). If possible, I would prefer an air con with 4 or 5 tick. Please indicate the type of pipes and material used for installation, warranty period and if it's a 2 trip install. Thanks. Ben