Can anyone tell me where I can buy refillable 1lbs propane / butane bottles like in the picture below? Also would be good to know where I can refill them.

 

not to sure about the lbs bit  but have seen similar in big c/makro    for stoves/gas torches

Not easy to find here....Has kept me from buying some camping stuff because I cannot source the bottles locally....+ many items here use the lindal/lindel? threads.....

You can Ebay 4 16-16.4 empty tanks for around $100.00 including shipping (customs unsure).....Lazada looks to have most all the adapter types.....

I have found the rounded ones like below @ 450 grams (15.87 oz).....I can refill them by transferring from 2 of the other type cans @ 230 gram per can with a transfer adapter I got from Lazada & run stuff for 8 hours.....

Some things can use this shape canister & some (like a Mr Heater, Mr Buddy heater)

cannot because of the design....

It's kind of a catch as catch can situation.....

Thank you for the info. 
Can you tell me where you bought the larger canisters?

44 minutes ago, pgrahmm said:

Not easy to find here....Has kept me from buying some camping stuff because I cannot source the bottles locally....+ many items here use the lindal/lindel? threads.....

You can Ebay 4 16-16.4 empty tanks for around $100.00 including shipping (customs unsure).....Lazada looks to have most all the adapter types.....

I have found the rounded ones like below @ 450 grams (15.87 oz).....I can refill them by transferring from 2 of the other type cans @ 230 gram per can with a transfer adapter I got from Lazada & run stuff for 8 hours.....

Some things can use this shape canister & some (like a Mr Heater, Mr Buddy heater)

cannot because of the design....

It's kind of a catch as catch can situation.....

 

Through a camping Facebook business called Trekking Corner.....Just message them with what you want.....The price was 290B each & I bought 4 - just deposited to his acct & they sent via Kerry.....

That's a lot less than I've found elsewhere....But once you get the cans they're easy to refill.....Just freeze the empty (to be filled bottle) for about an hour - set down & invert the filler cans with adapter straight down for a couple minutes each & they are refilled....I don't have a scale but 2x230 going into 450 with a little bit remaining in the 230's is close enough....