Start with how you’ll use it and the conditions you camp in. For most fresh-water hookups, look for:

• Drinking-water safe materials: Options labeled lead‑free and free of common plastics often used in non‑potable hoses.
• Diameter and flow: A 5/8-inch inner diameter balances flow and flexibility for many RVs.
• Flexibility and kink resistance: Easier routing around pedestals without constant kinks.
• Strain reliefs and durable ends: Reinforced fittings can help reduce leaks at the connections.
• Right length: Many campers carry 25–50 ft to reach far pedestals; shorter (10–15 ft) works for compact sites.
• Cold-weather needs: In freezing conditions, a heated hose designed for potable water can help reduce icing.

Match these features to your climate and typical campsites.

RV hoses are purpose-built for two very different jobs:

• Fresh-water hoses: Designed for drinking water, using materials labeled safe for potable use. Many feature anti‑kink construction, 5/8-inch inner diameters, and reinforced ends for frequent hookups.
• Sewer hoses: Built for waste water with larger diameters (commonly around 3 inches), crush‑resistant walls, and specialized fittings like bayonet/lug connections and multi‑size adapters.

It’s also common to keep a separate, non‑potable rinse hose for tasks like tank cleaning to avoid cross‑contamination. Using the right hose for each job helps maintain water quality and makes set‑ups more secure and easier to manage.

Length needs vary by campsite layout, but these ranges can help:

• Fresh-water hoses: Many RVers carry 25–50 feet to reach distant spigots. A shorter 10–15 ft section is handy for close hookups or to add on when needed.
• Sewer hoses: Common kits include 10 or 20 feet. If your site’s inlet is farther, add a short extension rather than overstretching the main hose.

Consider packing modular sections instead of one very long hose. It’s easier to store and lets you adjust length on the fly. If you often visit older or spread‑out parks, leaning toward the longer end can provide more flexibility.

You can shop a variety of RV hoses online and in many stores. Look under Auto & Tires > RV Parts & Accessories for categories like potable water hoses, heated water hoses, and sewer hoses with fittings and supports.

• Online: Use filters to browse by hose type, length, and features.
• In store: Selection varies by location; check availability before you go.
• Pickup or delivery: Options may be offered in your area for added convenience.

Exploring both fresh‑water and waste‑water sections helps you find all the pieces you need for a complete, safe RV hookup.

A few add‑ons can make set‑up cleaner and more reliable:

• Hose support: A sloped support helps maintain flow and keeps the hose off the ground.
• Universal adapter: Multi‑size (4‑in‑1 style) sewer adapters fit a range of campground inlets.
• Clear elbow or angle fitting: Provides a visual on flow and reduces sharp bends.
• Extensions: Short extension sections add reach without overstressing the main hose.
• End caps: Keep connections sealed during transport and storage.
• Rinse/clean‑out hose: A dedicated non‑potable hose helps with tank rinsing and clean‑up.

Choosing accessories that match your hose diameter and fittings can improve compatibility and ease of use.