How are shipping costs calculated?

Shipping costs are calculated based on your order and destination. Share your destination zip code, and we'll provide an estimate before you finalize your order.

Which regions do we deliver to?

We deliver to Germany, the EU, the UK, and North America. If you're located elsewhere, feel free to reach out to us for possibilities—though we can't guarantee delivery to all regions.

What are the steps to place an order?

Visit https://CaptainsSupply.shop to place your order. We accept PayPal, cryptocurrency, and other payment methods upon request.

Filter Info (4mm vs 13mm)

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.