Cheap salmon and potato dog food?

[MunchCrunch01]

My retriever currently eats Simpsons 12 kg adult sensitive salmon and potato dog food, he has no medical conditions but generally grains don't agree with him. It's £40/bag so reasonable but has anyone tried anything similar that's any cheaper?

Skinners salmon and rice 15kg £28 amazon

Thanks!

Autarky do a Salmon one too that's around the same price as Skinners. I used to be able to get it from Costco.

Ps I'm doing the Pedigree trial
It doesn't suit my 2 sensitive dogs

Orijen or Eden would probably be best for being cheaper and closest quality to Simpsons. (Imo!)

I'm another Skinners Field and Trial fan (though I use the duck one at £22 a bag). It does have rice rather than potato but that doesn't seem to irritate dogs as much as wheat/maize.

Thanks - I'll see which ones work best for him, appreciate it. Simpsons is great but we're trying to move at the moment and so many hidden costs.