I went to Asda today and I picked up a pack of 20 80Litre refuse sacks with tie top, the SEL said 50p which I thought was a bargain but they actually came up 25p on my receipt. I can't find them online but after googling for a bit I found that it's Poly-Linas budget range. The packaging was a black strip of cardboard with orange saying £MONEYSAVERS 20 Refuse Sacks with tie top. The barcode is 5010234115703. They're not bad quality, they're thicker than supermarkets own brand value ones.
Our Poly-Lina® refuse sack has 80 litre capacity and features Tie-Handles for easy closure. The Money-Savers refuse sack is produced in slightly lower gauge (thickness) material and features a Tie-Top closure.