According to https://www.yates.com.au/yates-5l-waterwise-soil-wetter-for-…, PPR is $14.62.
$0 C & C while stocks last at Bunnings warehouse.
Also 30 l for $15 - available from limited stores, none in NSW, VIC, TAS, NT
https://www.bunnings.com.au/yates-30l-waterwise-granular-soi…
Thanks, OP. We just used the last of ours!