Using an MTM Hydro extension lance not only increases the area you can clean, but it also keeps you a safe distance from the high-pressure stream coming out of the nozzle. All lances are 1/4" male pipe thread on both ends and may require female pipe thread fittings to install onto your pressure washer setup. See part number 24.0067 (1/4" Female NPT coupler) as an example.
Lances do not come with fittings or teflon tape installed, be sure to order those items separately to complete your system.