Many end fitting styles are available for Walther couplings because of the modular construction design. Most of the common fitting styles are listed here, and others are available to order.

Fitting Type	Walther Code	Description	Part Number Page
BSPP	WR	British Standard Pipe, Parallel Very common general purpose European fitting. Inch sized threads.
BSPP form B	WB	British Standard Pipe, Parallel with small sealing shoulder, form B Variant of BSPP used for high pressure.
Ermeto (EO)	L (Light) S (Heavy)	Ermeto, or EO, to DIN 2353. Popular European fitting for hydraulics. Uses ferrule and swivel nut. Metric threads. Available in Light & Heavy versions.
DIN 7631	D	DIN 7631 Metric male thread with female cone to connect to hose with swivel nut.
DIN/ISO 228 or BS 5200	VR0	DIN & ISO 228, BS5200 BSPP male thread with female cone to connect to hose with swivel nut.
Hose bar	SL	Hose barb, for hose & clamp Sized by the parallel portion of the barb.
Tube barb	SW	Barb for plastic tube, with nut, for small bores.
NPT	NP	National Pipe thread, Tapered Most common connection in the USA.
SAE J1926	SA	SAE straight thread (ISO 11926) Unified straight thread, sealed by an 'O'-ring.
JIC	LH	JIC, or SAE J514 37°Flare Popular for hydraulics, especially connecting to hoses with a swivel nut.
'Autoclave'	XX...	See HP-004 & HP-006 Series couplings Cone type fitting for very high pressures.