EFP is created in the glomerulus.

Explanation

(1) EFP or effective filtration pressure is a hydrostatic pressure.
(2) It is created because the blood enters the glomerulus at a faster rate than the rate by which it leaves.
(3) This is because the diameter of afferent renal arteriole is larger than the diameter of efferent renal arteroile.
(4) The glomerular capillaries therefore create glomerular hydrostatic pressure called EFP in the glomerulus.