Shipping is calculated on each order. I will estimate it before finalizing any order, all I need is the destination zip code! I can give you an estimate at any time.

Currently delivering to Germany, EU, UK and North America. I would entertain other continents by request, but no guarantees!

https://CaptainsSupply.shop

I accept PayPal, Crypto and other forms of payment on request

4mm - has less of a holdback (retention) so less fluid remains in the filter. It is harder to procure and can be more expensive.

13mm - has higher holdback and may need to be "backflushed" to get what remained out of it. More abundant and cheaper.

Both have same filter media size (0.22 microns) and therefore have same filtration strength.

Yes Linuo Cartridges are ordered and will available in August

It depends heavily on your country and the value of the order. Estimated fees are always conveyed when we sends shipping options to the customer.