I got before from roadside shops along Joo Chiat Road very near to Joo Chiat Complex (This area is somewhere around geylang serai malay village). Joo Chiat Road is one way road & the shop should be at yr right hand side, that is like a hardware shop & not very neatly dispayed their items
That was few years back, got that about S$20++, is very warm when sleep in Mosq. netting, unless u switch yr acon. higher.
ot. three days ago, saw my neighbour from opposite block putting up mosquito net over one of the bedroom's window. my place, between 5 to 10 seen or killed last night. will email town council.