Writs of Attachment

"(a) General rule.--Except as otherwise provided in subsection (b) property may be attached prior to judgment in the manner and to the extent prescribed by general rule.
(b) Exemptions.--Any property exempt under Subchapter B of Chapter 81 (relating to exemptions from execution) from attachment or execution upon a judgment shall be exempt from attachment under this section.
(c) Effect of dissolution.--If an attachment is dissolved after sale of the property attached, such dissolution shall not have the effect of divesting any estate or interest acquired by virtue of such sale by a person not a party to the attachment. (42 Pa.C.S.A. § 7501)

(a) General rule.--Except as provided by subsection (b) the exemptions from execution specified in this subchapter are in addition to any other exemptions from execution granted by any other statute.
(b) Specific sum of money.--Except as otherwise expressly provided by statute, where the provisions of this subchapter and of any other statute granting exemption from execution in terms of a specific sum of money are simultaneously applicable to execution against a judgment debtor, such exemptions shall not be aggregated, but the judgment debtor shall be entitled to the benefit of the applicable statute granting exemption in terms of the largest specific sum of money. (42 Pa.C.S.A. § 8121)"